texlive[53293] trunk: latexmk (1jan20)

commits+karl at tug.org commits+karl at tug.org
Wed Jan 1 22:52:34 CET 2020


Revision: 53293
          http://tug.org/svn/texlive?view=revision&revision=53293
Author:   karl
Date:     2020-01-01 22:52:34 +0100 (Wed, 01 Jan 2020)
Log Message:
-----------
latexmk (1jan20)

Modified Paths:
--------------
    trunk/Build/source/texk/texlive/linked_scripts/latexmk/latexmk.pl
    trunk/Master/texmf-dist/doc/man/man1/latexmk.1
    trunk/Master/texmf-dist/doc/man/man1/latexmk.man1.pdf
    trunk/Master/texmf-dist/doc/support/latexmk/CHANGES
    trunk/Master/texmf-dist/doc/support/latexmk/INSTALL
    trunk/Master/texmf-dist/doc/support/latexmk/README
    trunk/Master/texmf-dist/doc/support/latexmk/example_rcfiles/glossary_latexmkrc
    trunk/Master/texmf-dist/doc/support/latexmk/latexmk.pdf
    trunk/Master/texmf-dist/doc/support/latexmk/latexmk.txt
    trunk/Master/texmf-dist/scripts/latexmk/latexmk.pl

Modified: trunk/Build/source/texk/texlive/linked_scripts/latexmk/latexmk.pl
===================================================================
--- trunk/Build/source/texk/texlive/linked_scripts/latexmk/latexmk.pl	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Build/source/texk/texlive/linked_scripts/latexmk/latexmk.pl	2020-01-01 21:52:34 UTC (rev 53293)
@@ -162,6 +162,27 @@
 ##
 ## 12 Jan 2012 STILL NEED TO DOCUMENT some items below
 ##
+## 26 Dec 2019 John Collins  Change place of setting of $view_file
+##                           Make fully consistent set of options for engines:
+##                               -latex, -latex=...,
+##                           preserving backward compatibility, and avoiding suprises. 
+## 11 Dec 2019 John Collins  Change rules for wrapping in log file: This deals
+##                             with xelatex wrapping at > standard number of
+##                             bytes in presence of non-ASCII Unicode characters.
+##  4 Dec 2019 John Collins  If there were missing subdirectories in output/aux
+##                           directories, and these were successfully created,
+##                           then ignore error from *latex, since rerun may
+##                           succeed.
+## 14 Nov 2019 John Collins  Add comment.
+## 12 Nov 2019 John Collins  Use $compiling_cmd, $warning_cmd, $success_cmd
+#                            on normal make, rather than just in -pvc mode.
+##  5 Aug 2019 John Collins  The changing of '\' to '/' in filenames is now
+##                             done for msys as well as MSWin32.
+##  8 Jul 2019 John Collins  Allow addition of hook for processing lists of
+##                             missing source files, used after run of *latex.
+##  2 Jul 2019 John Collins  Silence message about disallowing change of output
+##                            file type.
+##                           V. 4.66
 ## 28 Jun 2019 John Collins  Try to deal with log file parsing problems
 ##                           V. 4.65
 ## 21 May 2019 John Collins  Fix incorrect listings by -rules and by -deps
@@ -233,8 +254,8 @@
 
 $my_name = 'latexmk';
 $My_name = 'Latexmk';
-$version_num = '4.65';
-$version_details = "$My_name, John Collins, 18 June 2019";
+$version_num = '4.67';
+$version_details = "$My_name, John Collins, 26 Dec. 2019";
 
 use Config;
 use File::Basename;
@@ -359,7 +380,7 @@
 
 
 # Hooks for customized extra processing on aux files.  The following
-# variable is an array of references to function.  Each function is
+# variable is an array of references to functions.  Each function is
 # invoked in turn when a line of an aux file is processed (if none
 # of the built-in actions have been done).  On entry to the function,
 # the following variables are set:
@@ -367,6 +388,15 @@
 #    $rule = name of rule during the invocation of which, the aux file
 #            was supposed to have been generated.
 @aux_hooks = ();
+# Hooks for customized processing on lists of source and missing files.
+# The following variable is an array of references to functions.  Each 
+# function is invoked in turn after a run of latex (or pdflatex etc) and
+# latexmk has analyzed the .log and .fls files for dependency information.
+# On entry to each called function, the following variables are set:
+#    $rule = name of *latex rule
+#    %dependents: maps source files and possible source files to a status.
+#                 See begining of sub parse_log for possible values.
+ at latex_file_hooks = ();
 
 #########################################################################
 ## Default document processing programs, and related settings,
@@ -1739,6 +1769,11 @@
   }
   elsif (/^-l$/)     { $landscape_mode = 1; }
   elsif (/^-l-$/)    { $landscape_mode = 0; }
+  elsif ( /^-latex$/ )      { 
+      $pdf_mode = 0;
+      $postscript_mode = 0; 
+      $dvi_mode = 1;
+  }
   elsif (/^-latex=(.*)$/) {
       $latex = $1;
   }
@@ -1752,6 +1787,11 @@
       { $silence_logfile_warnings = 0; }
   elsif ( /^-logfilewarninglist-$/ || /^-logfilewarnings-$/ )
       { $silence_logfile_warnings = 1; }
+  elsif ( /^-lualatex$/ || /^-pdflualatex$/ )      { 
+      $pdf_mode = 4;
+      $dvi_mode = $postscript_mode = 0; 
+  }
+# See below for -lualatex=...
 # See above for -M
   elsif (/^-MF$/) {
      if ( $ARGV[0] eq '' ) {
@@ -1785,18 +1825,18 @@
   elsif (/^-pdflua$/){ $pdf_mode = 4; }
   elsif (/^-pdfps$/) { $pdf_mode = 2; }
   elsif (/^-pdfxe$/) { $pdf_mode = 5; }
-#  elsif (/^-pdflatex$/) {
-#      $pdflatex = "pdflatex %O %S";
-#      $pdf_mode = 1;
-#      $dvi_mode = $postscript_mode = 0; 
-#  }
+  elsif (/^-pdflatex$/) {
+      $pdflatex = "pdflatex %O %S";
+      $pdf_mode = 1;
+      $dvi_mode = $postscript_mode = 0; 
+  }
   elsif (/^-pdflatex=(.*)$/) {
       $pdflatex = $1;
   }
-  elsif (/^-pdflualatex=(.*)$/) {
+  elsif ( /^-pdflualatex=(.*)$/ || /^-lualatex=(.*)$/ ) {
       $lualatex = $1;
   }
-  elsif (/^-pdfxelatex=(.*)$/) {
+  elsif ( /^-pdfxelatex=(.*)$/ || /^-xelatex=(.*)$/ ) {
       $xelatex = $1;
   }
   elsif (/^-pretex=(.*)$/) {
@@ -1873,14 +1913,11 @@
   elsif (/^-view=ps$/)      { $view = "ps";}
   elsif (/^-view=pdf$/)     { $view = "pdf"; }
   elsif (/^-Werror$/){ $warnings_as_errors = 1; }
-  elsif (/^-lualatex$/)      { 
-      $pdf_mode = 4;
-      $dvi_mode = $postscript_mode = 0; 
-  }
-  elsif (/^-xelatex$/)      { 
+  elsif ( /^-xelatex$/ || /^-pdfxelatex$/ )      { 
       $pdf_mode = 5;
       $dvi_mode = $postscript_mode = 0; 
   }
+# See above for -xelatex=...
   elsif (/^-e$/) {  
      if ( $#ARGV < 0 ) {
         &exit_help( "No code to execute specified after -e switch"); 
@@ -2267,8 +2304,10 @@
     # the only destinations.  So if ps or dvi files needed, we cannot
     # allow switching.  (There will then be an error condition if a TeX
     # engine fails to produce the correct type of output file.)
-    warn "$My_name: Disallowing switch of output file as incompatible\n",
-         "    with file requests.\n";
+    if ($diagnostics) {
+        warn "$My_name: Disallowing switch of output file as incompatible\n",
+             "    with file requests.\n";
+    }
     $can_switch = 0;
 }
 
@@ -2417,7 +2456,9 @@
     #      but %rule_db is needed in the continue block, which is not in the
     #      scope of a local declaration here.
     &rdb_initialize_rules;
-    
+    $view_file = '';
+    rdb_one_rule( 'view', sub{ $view_file = $$Psource; } );
+
     if ( $cleanup_mode > 0 ) {
 # ?? MAY NEED TO FIX THE FOLLOWING IF $aux_dir or $out_dir IS SET.
         my %other_generated = ();
@@ -2645,6 +2686,7 @@
     #Initialize failure flags now.
     $failure = 0;
     $failure_msg = '';
+    if ($compiling_cmd) { Run_subst( $compiling_cmd ); }
     $failure = &rdb_make;
     if ( ( $failure <= 0 ) || $force_mode ) {
       rdb_for_some( [keys %one_time], \&rdb_run1 );
@@ -2656,7 +2698,13 @@
             $failure_msg = "Warning(s) from latex (or c.) for '$filename'; treated as error";
         }
     }
-    if ($failure > 0) { next FILE; }
+    
+    if ($failure > 0) {
+        if ($failure_cmd) { Run_subst( $failure_cmd ); }
+        next FILE;
+    } else {
+        if ($success_cmd) { Run_subst( $success_cmd ); }
+    }
 } # end FILE
 continue {
     if ($deps_handle) { deps_list($deps_handle); }
@@ -2755,7 +2803,7 @@
     my $unbalanced_quote = 0;
     my $balanced_quote = 0;
     foreach (@_) {
-        if ( $^O eq "MSWin32" ) {
+        if ( ($^O eq "MSWin32") || ($^O eq "msys") ) {
             # On MS-Win, change directory separator '\' to '/', as needed
             # by the TeX engines, for which '\' introduces a macro name.
             # Remember that '/' is a valid directory separator in MS-Win.
@@ -3461,9 +3509,6 @@
     
     $quell_uptodate_msgs = 1;
 
-    local $view_file = '';
-    rdb_one_rule( 'view', sub{ $view_file = $$Psource; } );
-  
     if ( ($view eq 'dvi') || ($view eq 'pdf') || ($view eq 'ps') ) { 
         warn "Viewing $view\n";
     }
@@ -3528,8 +3573,6 @@
         }
         $failure = &rdb_make;
 
-##     warn "=========Viewer PID = $$Pviewer_process; updated=$updated\n";
-
         if ( $MSWin_fudge_break && ($^O eq "MSWin32") ) {
             $SIG{BREAK} = $SIG{INT} = 'DEFAULT';
         }
@@ -4538,8 +4581,12 @@
             }
         }
         else {
-            # LuaTeX sometimes wraps at 80 instead of 79, so work around this
-            while ( ( ($len == $log_wrap) || ( ($engine eq 'LuaTeX') && ($len == $log_wrap+1) ) )
+            # Xetex and luatex sometimes wrap at longer line lengths:
+            # LuaTeX sometimes at 80. Xetex 80 or longer with non-ascii characters.
+            while ( ( ($len == $log_wrap)
+                      || ( ($engine eq 'LuaTeX') && ($len == $log_wrap+1) )
+                      || ( ($engine eq 'XeTeX') &&  ($len >= $log_wrap+1) )
+                    )
                     && !eof($log_file) ) {
                 push @lines, $_;
                 my $extra = <$log_file>;
@@ -5893,9 +5940,10 @@
                     warn "  ===== CHANGING output type from '$newext' to '$oldext' in '$rule'\n";
                     my $switch_error =  switch_output( $oldext, $newext );
                     if ($switch_error) {
-                        warn "   I could not accommodate the changed output extension\n",
-                             "   (either because the configuration does not allow it\n",
-                             "   or because there is a conflict with requested filetypes).\n",
+                        warn "   I could not accommodate the changed output extension.\n",
+                             "   That is either because the configuration does not allow it\n",
+                             "   or because there is a conflict with implicit or explicit requested filetypes.\n",
+                             "   (Typically that is about .dvi and/or .ps filetypes.)\n",
                              "===> There may be subsequent warnings, which may or may not be ignorable.\n",
                              "===> If necessary, clean out generated files and try again\n";
                     }
@@ -6124,7 +6172,7 @@
     }
  
     &parse_log;
-    $missing_dirs = 'none';      # Status of missing directories
+    my $missing_dirs = 'none';      # Status of missing directories
     if (@missing_subdirs) {
         $missing_dirs = 'success';
         if ($allow_subdir_creation) {
@@ -6424,6 +6472,10 @@
         }
     }
 
+    foreach my $Psub (@latex_file_hooks) {
+         &$Psub;
+    }
+
     # Some packages (e.g., bibtopic) generate a dummy error-message-providing
     #   bbl file when a bbl file does not exist.  Then the fls and log files
     #   show the bbl file as created by the primary run and hence as a
@@ -6470,6 +6522,8 @@
     }
     rdb_remove_files( $rule, @files_not_needed );
 
+    return ($missing_dirs, [@missing_subdirs] );
+
 } # END rdb_set_latex_deps
 
 #************************************************************
@@ -7949,7 +8003,7 @@
     }
 
     # Find current set of source files:
-    &rdb_set_latex_deps;
+    my ($missing_dirs, $PA_missing_subdirs) = &rdb_set_latex_deps;
 
     # For each file of the kind made by epstopdf.sty during a run, 
     #   if the file has changed during a run, then the new version of
@@ -7981,6 +8035,12 @@
           if (! $silent);
        $return = 0;
     }
+    if ($return_latex && ($missing_dirs ne 'none') ) {
+       print "Error in (pdf)LaTeX, but needed subdirectories in output directory\n",
+             "   were missing and successfully created, so try again.\n"
+          if (! $silent);
+       $return = 0;
+    }
     # Summarize issues that may have escaped notice:
     @primary_warning_summary = ();
     if ($bad_reference) {
@@ -9363,6 +9423,22 @@
 
 ####################################################
 
+sub add_latex_file_hook {
+    # Usage: add_latex_file_hook( sub_name )
+    # Add the name subroutine to the array of hooks for
+    # processing list of possible dependency files after a run of *latex.
+    # The argument is either a string naming the subroutine, e.g.
+    #     add_latex_file_hook( 'subname' );
+    # or a Perl reference to the subroutine, e.g.,
+    #     add_latex_file_hook( \&subname );
+    # It is also possible to use an anonymous subroutine, e.g.,
+    #     add_latex_file_hook( sub{  code of subroutine... } );
+    my ($sub_name) = @_;
+    push @latex_file_hooks, $sub_name;
+}
+
+####################################################
+
 sub set_input_ext {
     # Usage: set_input_ext( rule, ext, ... )
     # Set list of extension(s) (specified without a leading period) 

Modified: trunk/Master/texmf-dist/doc/man/man1/latexmk.1
===================================================================
--- trunk/Master/texmf-dist/doc/man/man1/latexmk.1	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Master/texmf-dist/doc/man/man1/latexmk.1	2020-01-01 21:52:34 UTC (rev 53293)
@@ -1,4 +1,4 @@
-.TH LATEXMK 1 "18 June 2019" ""
+.TH LATEXMK 1 "26 December 2019" ""
 .SH NAME
 latexmk \- generate LaTeX document
 .SH SYNOPSIS
@@ -609,6 +609,14 @@
 Turn off \fB-l\fR.
 
 .TP
+.B -latex
+This sets the generation of dvi files by \fIlatex\fR, and turns off the
+generation of pdf and ps files.
+
+\fINote: to set the \fRcommand\fI used when latex is specified, see the
+\fB-latex="COMMAND"\fI option.\fR
+
+.TP
 .B -latex="COMMAND"
 This sets the string specifying the command to run latex, and is
 typically used to add desired options.  Since the string normally
@@ -622,6 +630,10 @@
 need to change the single quotes to double quotes (or something
 else). 
 
+\fINote: This option when provided with the COMMAND argument only sets the
+command for invoking latex; it does not turn on the use of
+latex. That is done by other options or in an initialization file.\fR
+
 To set the command for running \fIpdflatex\fR (rather than the command for
 \fIlatex\fR) see the \fB-pdflatex\fR option.
 
@@ -655,6 +667,16 @@
 \fIlatexmk\fR.)
 
 .TP
+.B -lualatex="COMMAND"
+This sets the string specifying the command to run \fIlualatex\fR.  It
+behaves like the \fB-pdflatex\fR option, but sets the variable
+\fI$lualatex\fR.  
+
+\fINote: This option when provided with the COMMAND argument only sets the
+command for invoking lualatex; it does not turn on the use of
+lualatex. That is done by other options or in an initialization file.\fR
+
+.TP
 .B -M
 Show list of dependent files after processing.  This is equivalent to
 the \fB-deps\fR option.
@@ -771,13 +793,14 @@
 multiple runs to generate a fully up-to-date .xdv file does \fIlatexmk\fR
 then call \fIxdvipdfmx\fR to generate the final .pdf file.
 
-(\fINote:\fR When the document includes large graphics files,
-especially .png files, the last step can be quite time consuming, even
-when the creation of the .xdv file by \fIxelatex\fR is fast.  So the
-use of the intermediate .xdv file can result in substantial gains in
-procesing time, since the .pdf file is produced once rather than on
-every run of \fIxelatex\fR. See the documentation on the \fB-pdfxe\fR
-option for why an .xdv file is used.
+(\fINote:\fR The reason why \fIlatexmk\fR arranges for \fIxelatex\fR to
+make an .xdv file instead of the \fIxelatex\fR's default of a .pdf file is
+as follows: When the document includes large graphics files,
+especially .png files, the production of a .pdf file can be quite time
+consuming, even when the creation of the .xdv file by \fIxelatex\fR is
+fast.  So the use of the intermediate .xdv file can result in substantial
+gains in procesing time, since the .pdf file is produced once rather than
+on every run of \fIxelatex\fR.)
 
 .TP
 .B -pdf-
@@ -793,6 +816,14 @@
 \fI$latex\fR configuration variable).
 
 .TP
+.B -pdflatex
+This sets the generation of pdf files by \fIpdflatex\fR, and turns off the
+generation of dvi and ps files.
+
+\fINote: to set the \fRcommand\fI used when pdflatex is specified, see the
+\fB-pdflatex="COMMAND"\fI option.\fR
+
+.TP
 .B -pdflatex="COMMAND"
 This sets the string specifying the command to run \fIpdflatex\fR, and is
 typically used to add desired options.  Since the string normally
@@ -808,31 +839,21 @@
 need to change the single quotes to double quotes (or something
 else). 
 
+\fINote: This option when provided with the COMMAND argument only sets the
+command for invoking pdflatex; it does not turn on the use of
+pdflatex. That is done by other options or in an initialization file.\fR
+
 To set the command for running \fIlatex\fR (rather than the command
 for \fIpdflatex\fR) see the \fB-latex\fR option.
 
 .TP
 .B -pdflualatex="COMMAND"
-This sets the string specifying the command to run \fIlualatex\fR.  It
-behaves like the \fB-pdflatex\fR option, but sets the variable
-\fI$lualatex\fR.  
+Equivalent to \fB-lualatex="COMMAND"\fR.
 
 .TP
 .B -pdfxelatex="COMMAND"
-This sets the string specifying the command to run \fIxelatex\fR.  It
-behaves like the \fB-pdflatex\fR option, but sets the variable
-\fI$xelatex\fR.
+Equivalent to \fB-xelatex="COMMAND"\fR.
 
-\fIWarning\fR: It is important to ensure that the -no-pdf is used when
-\fIxelatex\fR is invoked; see the explanation for the variable
-\fI$xelatex\fR for why this is necessary.  If you provide %O in the
-command specification, this will be done automatically.
-
-An example of the use of the \fB-pdfxelatex\fR option:
-
-     latexmk -pdfxe -pdfxelatex="xelatex --shell-escape %O %S"  foo.tex
-
-
 .TP
 .B -pretex=CODE
 
@@ -1188,12 +1209,29 @@
 of \fIlatexmk\fR. \fILatexmk\fR first uses \fIxelatex\fR to make
 an .xdv file, and does all the extra runs needed (including those of
 \fIbibtex\fR, etc).  Only after that does it make the pdf file from
-the .xdv file, using \fIxdvipdfmx\fR.  This procedure can result in
-considerable savings in run time, since the xdv-to-pdf conversion is
-quite time-consuming when large graphics files are used in the
-document.]
+the .xdv file, using \fIxdvipdfmx\fR.  See the documentation for the
+\fB-pdfxe\fR for why this is done.]
 
+.TP
+.B -xelatex="COMMAND"
+This sets the string specifying the command to run \fIxelatex\fR.  It sets
+the variable \fI$xelatex\fR.
 
+\fIWarning\fR: It is important to ensure that the \fB-no-pdf\fR is used
+when \fIxelatex\fR is invoked, since \fIlatexmk\fR expects \fIxelatex\fR to
+produce an .xdv file, not a .pdf file. If you provide %O in the command
+specification, this will be done automatically.  See the documentation for
+the \fB-pdfxe\fR option for why \fIlatexmk\fR makes a .xdv file rather than
+a .pdf file when \fIxelatex\fR is used.
+
+An example of the use of the \fB-pdfxelatex\fR option:
+
+     latexmk -pdfxe -pdfxelatex="xelatex --shell-escape %O %S"  foo.tex
+
+\fINote: This option when provided with the COMMAND argument only sets the
+command for invoking lualatex; it does not turn on the use of
+lualatex. That is done by other options or in an initialization file.\fR
+
 .PP
 \fBCompatibility between options\fR
 
@@ -2041,10 +2079,11 @@
 .B $compiling_cmd [""], $failure_cmd [""], $warning_cmd [""], $success_cmd [""]
 
 These variables specify commands that are executed at certain points
-of compilations during preview-continuous mode.  One motivation for
+of compilations.  One motivation for
 their existance is to allow very useful convenient visual indications of
 compilation status even when the window receiving the screen output of
-the compilation is hidden. 
+the compilation is hidden.  This is particularly useful in
+preview-continuous mode.
 
 The commands are executed at the following points:
 \fI$compiling_cmd\fR at the start of compilation, \fI$success_cmd\fR
@@ -3157,12 +3196,14 @@
 documentation of the \fB-xelatex\fR option for some special properties
 of \fIlatexmk\fR's use of \fIxelatex\fR.
 
-\fINote about xelatex\fR: Now \fIlatexmk\fR uses \fIxelatex\fR to make
-an .xdv rather than .pdf file, with the .pdf file being created in a
-separate step.  This is enforced by the use of the \fB-no-pdf\fR
-option.  If %O is part of the command for invoking \fIxelatex\fR, then
-\fIlatexmk\fR will insert the \fB-no-pdf\fR option automatically,
-otherwise you must provide the option yourself
+\fINote about xelatex\fR: \fIlatexmk\fR uses \fIxelatex\fR to make an .xdv
+rather than .pdf file, with the .pdf file being created in a separate step.
+This is enforced by the use of the \fB-no-pdf\fR option.  If %O is part of
+the command for invoking \fIxelatex\fR, then \fIlatexmk\fR will insert the
+\fB-no-pdf\fR option automatically, otherwise you must provide the option
+yourself.  See the documentation for the \fB-pdfxe\fR option for why
+\fIlatexmk\fR makes a .xdv file rather than a .pdf file when \fIxelatex\fR
+is used.
 
 To do a coordinated setting of all of \fI$latex\fR, \fI$pdflatex\fR,
 \fI$lualatex\fR, and \fI$xelatex\fR, see the section "Advanced
@@ -3801,7 +3842,7 @@
 harvested too easily.)
 .SH AUTHOR
 Current version, by John Collins (username jcc8 at node psu.edu).
-(Version 4.65).
+(Version 4.67).
 
 Released version can be obtained from CTAN:
 <http://www.ctan.org/pkg/latexmk/>, and from the

Modified: trunk/Master/texmf-dist/doc/man/man1/latexmk.man1.pdf
===================================================================
(Binary files differ)

Modified: trunk/Master/texmf-dist/doc/support/latexmk/CHANGES
===================================================================
--- trunk/Master/texmf-dist/doc/support/latexmk/CHANGES	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Master/texmf-dist/doc/support/latexmk/CHANGES	2020-01-01 21:52:34 UTC (rev 53293)
@@ -690,3 +690,15 @@
 From v. 4.64a to 4.65
   Fix incorrect parsing of long quoted filenames in log file that sometimes
     prevented latexmk from running.
+
+From v. 4.65 to 4.67
+  Improve parsing of long lines in log file, especially with UTF-8 filenames
+    and xelatex. 
+  Minor diagnostic improvements
+  Allow addition of hook for processing lists of missing source files.
+  Changing of '\' to '/' in filenames is done for msys as well as MSWin32.
+  Use $compiling_cmd, $warning_cmd, $success_cmd on normal make, rather
+    than just in -pvc mode.
+  If there were missing subdirectories in output/aux directories, and these
+    were successfully created, then ignore error from *latex, since rerun
+    may succeed.

Modified: trunk/Master/texmf-dist/doc/support/latexmk/INSTALL
===================================================================
--- trunk/Master/texmf-dist/doc/support/latexmk/INSTALL	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Master/texmf-dist/doc/support/latexmk/INSTALL	2020-01-01 21:52:34 UTC (rev 53293)
@@ -1,6 +1,6 @@
             INSTALLING latexmk
             ==================
-      (Version 4.65, 18 June 2019)
+      (Version 4.67, 26 December 2019)
 
             John Collins
             Physics Department

Modified: trunk/Master/texmf-dist/doc/support/latexmk/README
===================================================================
--- trunk/Master/texmf-dist/doc/support/latexmk/README	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Master/texmf-dist/doc/support/latexmk/README	2020-01-01 21:52:34 UTC (rev 53293)
@@ -1,4 +1,4 @@
-Latexmk, version 4.65, 18 June 2019
+Latexmk, version 4.67, 26 December 2019
 -----------------------------------
 
 Latexmk completely automates the process of generating a LaTeX
@@ -87,7 +87,8 @@
 
 John Collins
 ---------------------------- "latexmk -h" ----------------------------
-Latexmk 4.65: Automatic LaTeX document generation routine
+===== Set bibtex_fudge = 0 ===
+Latexmk 4.67: Automatic LaTeX document generation routine
 
 Usage: latexmk [latexmk_options] [filename ...]
 

Modified: trunk/Master/texmf-dist/doc/support/latexmk/example_rcfiles/glossary_latexmkrc
===================================================================
--- trunk/Master/texmf-dist/doc/support/latexmk/example_rcfiles/glossary_latexmkrc	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Master/texmf-dist/doc/support/latexmk/example_rcfiles/glossary_latexmkrc	2020-01-01 21:52:34 UTC (rev 53293)
@@ -13,9 +13,12 @@
    add_cus_dep( 'glo', 'gls', 0, 'makeglossaries' );
    $clean_ext .= " acr acn alg glo gls glg";
    sub makeglossaries {
-      my ($name, $path) = fileparse( $$Psource );
-      return system "makeglossaries -d '$path' '$name'";
-  }
+      my ($base_name, $path) = fileparse( $_[0] );
+      pushd $path;
+      my $return = system "makeglossaries", $base_name;
+      popd;
+      return $return;
+   }
 
 
 # 2. If you use the OBSOLETE glossary package, then you can do

Modified: trunk/Master/texmf-dist/doc/support/latexmk/latexmk.pdf
===================================================================
(Binary files differ)

Modified: trunk/Master/texmf-dist/doc/support/latexmk/latexmk.txt
===================================================================
--- trunk/Master/texmf-dist/doc/support/latexmk/latexmk.txt	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Master/texmf-dist/doc/support/latexmk/latexmk.txt	2020-01-01 21:52:34 UTC (rev 53293)
@@ -61,7 +61,7 @@
 
 
 
-                                 18 June 2019                                1
+                               26 December 2019                              1
 
 
 
@@ -127,7 +127,7 @@
 
 
 
-                                 18 June 2019                                2
+                               26 December 2019                              2
 
 
 
@@ -193,7 +193,7 @@
 
 
 
-                                 18 June 2019                                3
+                               26 December 2019                              3
 
 
 
@@ -259,7 +259,7 @@
 
 
 
-                                 18 June 2019                                4
+                               26 December 2019                              4
 
 
 
@@ -325,7 +325,7 @@
 
 
 
-                                 18 June 2019                                5
+                               26 December 2019                              5
 
 
 
@@ -391,7 +391,7 @@
 
 
 
-                                 18 June 2019                                6
+                               26 December 2019                              6
 
 
 
@@ -457,7 +457,7 @@
 
 
 
-                                 18 June 2019                                7
+                               26 December 2019                              7
 
 
 
@@ -523,7 +523,7 @@
 
 
 
-                                 18 June 2019                                8
+                               26 December 2019                              8
 
 
 
@@ -589,7 +589,7 @@
 
 
 
-                                 18 June 2019                                9
+                               26 December 2019                              9
 
 
 
@@ -655,7 +655,7 @@
 
 
 
-                                 18 June 2019                               10
+                               26 December 2019                             10
 
 
 
@@ -703,6 +703,13 @@
        -l-    Turn off -l.
 
 
+       -latex This  sets  the  generation of dvi files by latex, and turns off
+              the generation of pdf and ps files.
+
+              Note: to set the command used when latex is specified,  see  the
+              -latex="COMMAND" option.
+
+
        -latex="COMMAND"
               This sets the string specifying the command to run latex, and is
               typically used to add desired options.  Since  the  string  nor-
@@ -711,28 +718,35 @@
                    latexmk -latex="latex --shell-escape %O %S"  foo.tex
 
               The  specification of the contents of the string are the same as
-              for the $latex configuration variable.  Depending on your  oper-
-              ating  system  and the command-line shell you are using, you may
-              need to change the single quotes to double quotes (or  something
-              else).
 
-              To set the command for running pdflatex (rather than the command
-              for latex) see the -pdflatex option.
 
 
+                               26 December 2019                             11
 
-                                 18 June 2019                               11
 
 
 
 
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              for the $latex configuration variable.  Depending on your  oper-
+              ating  system  and the command-line shell you are using, you may
+              need to change the single quotes to double quotes (or  something
+              else).
+
+              Note:  This  option when provided with the COMMAND argument only
+              sets the command for invoking latex; it does not turn on the use
+              of  latex. That is done by other options or in an initialization
+              file.
+
+              To set the command for running pdflatex (rather than the command
+              for latex) see the -pdflatex option.
+
+
        -logfilewarninglist
               -logfilewarnings After a run of (pdf)latex, give a list of warn-
-              ings  about  undefined  citations  and references (unless silent
+              ings about undefined citations  and  references  (unless  silent
               mode is on).
 
               See also the $silence_logfile_warnings configuration variable.
@@ -739,7 +753,7 @@
 
 
        -logfilewarninglist-
-              -logfilewarnings- After a run of (pdf)latex, do not give a  list
+              -logfilewarnings-  After a run of (pdf)latex, do not give a list
               of warnings about undefined citations and references.  (Default)
 
               See also the $silence_logfile_warnings configuration variable.
@@ -746,8 +760,8 @@
 
 
        -lualatex
-              Use  lualatex.   That  is,  use  lualatex  to process the source
-              file(s) to pdf.  The generation of dvi and postscript  files  is
+              Use lualatex.  That is,  use  lualatex  to  process  the  source
+              file(s)  to  pdf.  The generation of dvi and postscript files is
               turned off.
 
               This option is equivalent to using the following set of options
@@ -754,11 +768,34 @@
 
                    -pdflua -dvi- -ps-
 
-              (Note:  Note  that  the method of implementation of this option,
-              but not its intended effect, differ from some  earlier  versions
+              (Note: Note that the method of implementation  of  this  option,
+              but  not  its intended effect, differ from some earlier versions
               of latexmk.)
 
 
+       -lualatex="COMMAND"
+              This sets the string specifying the command to run lualatex.  It
+              behaves like the -pdflatex option, but sets the variable $luala-
+              tex.
+
+              Note: This option when provided with the COMMAND  argument  only
+              sets  the command for invoking lualatex; it does not turn on the
+              use of lualatex. That is done by other options or in an initial-
+              ization file.
+
+
+
+
+
+                               26 December 2019                             12
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
        -M     Show  list of dependent files after processing.  This is equiva-
               lent to the -deps option.
 
@@ -785,17 +822,6 @@
               option turns off the default behavior.
 
 
-
-
-                                 18 June 2019                               12
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
        -new-viewer-
               The  inverse  of the -new-viewer option.  It puts latexmk in its
               normal behavior that in preview-continuous mode it checks for an
@@ -824,6 +850,18 @@
 
               See also the -auxdir/-aux-directory options, and  the  $aux_dir,
               $out_dir,  and $search_path_separator configuration variables of
+
+
+
+                               26 December 2019                             13
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
               latexmk.  In particular, see the documentation of  $out_dir  for
               some complications on what directory names are suitable.
 
@@ -852,16 +890,6 @@
               turns them off.
 
 
-
-                                 18 June 2019                               13
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
        -pdf   Generate pdf version of document using pdflatex.  (If  you  wish
               to use lualatex or xelatex, you can use whichever of the options
               -pdflua, -pdfxe, -lualatex or -xelatex applies.)   To  configure
@@ -888,27 +916,48 @@
               multiple  runs to generate a fully up-to-date .xdv file does la-
               texmk then call xdvipdfmx to generate the final .pdf file.
 
-              (Note: When the document includes large  graphics  files,  espe-
-              cially  .png  files,  the last step can be quite time consuming,
-              even when the creation of the .xdv file by xelatex is fast.   So
-              the  use of the intermediate .xdv file can result in substantial
-              gains in procesing time, since the .pdf file  is  produced  once
-              rather  than  on  every run of xelatex. See the documentation on
-              the -pdfxe option for why an .xdv file is used.
 
 
-       -pdf-  Turn off generation of pdf version of document.   (This  can  be
-              used  to override a setting in a configuration file.  It may get
+
+                               26 December 2019                             14
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
+              (Note: The reason why latexmk arranges for xelatex  to  make  an
+              .xdv  file instead of the xelatex's default of a .pdf file is as
+              follows: When the document includes large graphics files,  espe-
+              cially  .png  files,  the production of a .pdf file can be quite
+              time consuming, even when the creation of the .xdv file by xela-
+              tex  is  fast.  So the use of the intermediate .xdv file can re-
+              sult in substantial gains in procesing time, since the .pdf file
+              is produced once rather than on every run of xelatex.)
+
+
+       -pdf-  Turn  off  generation  of pdf version of document.  (This can be
+              used to override a setting in a configuration file.  It may  get
               overridden if some other option requires the generation of a pdf
               file.)
 
-              If  after  all  options  have  been processed, pdf generation is
-              still turned off, then generation of a dvi file will  be  turned
+              If after all options have  been  processed,  pdf  generation  is
+              still  turned  off, then generation of a dvi file will be turned
               on, and then the program used to compiled a document will be la-
-              tex (or, more precisely, whatever program is  configured  to  be
+              tex  (or,  more  precisely, whatever program is configured to be
               used in the $latex configuration variable).
 
 
+       -pdflatex
+              This sets the generation of pdf files by pdflatex, and turns off
+              the generation of dvi and ps files.
+
+              Note:  to  set  the command used when pdflatex is specified, see
+              the -pdflatex="COMMAND" option.
+
+
        -pdflatex="COMMAND"
               This sets the string specifying the command to run pdflatex, and
               is typically used to add desired options.  Since the string nor-
@@ -917,51 +966,42 @@
                    latexmk  -pdf  -pdflatex="pdflatex  --shell-escape  %O  %S"
               foo.tex
 
+              The  specification of the contents of the string are the same as
+              for the $pdflatex configuration variable.  (The option -pdflatex
+              in fact sets the variable $pdflatex.)  Depending on your operat-
+              ing system and the command-line shell you  are  using,  you  may
+              need  to change the single quotes to double quotes (or something
+              else).
 
+              Note: This option when provided with the COMMAND  argument  only
+              sets  the command for invoking pdflatex; it does not turn on the
+              use of pdflatex. That is done by other options or in an initial-
+              ization file.
 
-                                 18 June 2019                               14
+              To  set  the  command for running latex (rather than the command
+              for pdflatex) see the -latex option.
 
 
 
 
 
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+                               26 December 2019                             15
 
 
-              The specification of the contents of the string are the same  as
-              for the $pdflatex configuration variable.  (The option -pdflatex
-              in fact sets the variable $pdflatex.)  Depending on your operat-
-              ing  system  and  the  command-line shell you are using, you may
-              need to change the single quotes to double quotes (or  something
-              else).
 
-              To  set  the  command for running latex (rather than the command
-              for pdflatex) see the -latex option.
 
 
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
        -pdflualatex="COMMAND"
-              This sets the string specifying the command to run lualatex.  It
-              behaves like the -pdflatex option, but sets the variable $luala-
-              tex.
+              Equivalent to -lualatex="COMMAND".
 
 
        -pdfxelatex="COMMAND"
-              This sets the string specifying the command to run xelatex.   It
-              behaves  like the -pdflatex option, but sets the variable $xela-
-              tex.
+              Equivalent to -xelatex="COMMAND".
 
-              Warning: It is important to ensure that the -no-pdf is used when
-              xelatex  is invoked; see the explanation for the variable $xela-
-              tex for why this is necessary.  If you provide %O in the command
-              specification, this will be done automatically.
 
-              An example of the use of the -pdfxelatex option:
-
-                   latexmk  -pdfxe  -pdfxelatex="xelatex --shell-escape %O %S"
-              foo.tex
-
-
-
        -pretex=CODE
 
               Given that CODE is some TeX code, this options sets that code to
@@ -982,18 +1022,6 @@
 
                   latexmk -usepretex='\AtBeginDocument{Message\par}' foo.tex
 
-
-
-
-                                 18 June 2019                               15
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
               If you already have a suitable command configured, you only need
 
                   latexmk -pretex='\AtBeginDocument{Message\par}' foo.tex
@@ -1020,6 +1048,18 @@
 
        -pF    Postscript  file  filtering.   The  argument to this option is a
               filter which will generate a filtered postscript file  with  the
+
+
+
+                               26 December 2019                             16
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
               extension ".psF".  All extra processing (e.g. preview, printing)
               will then be performed on this filtered postscript file.
 
@@ -1048,18 +1088,6 @@
        -pv-   Turn off -pv.
 
 
-
-
-
-                                 18 June 2019                               16
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
        -pvc   Run a file previewer  and  continually  update  the  .dvi,  .ps,
               and/or .pdf files whenever changes are made to source files (see
               the Description above).  Which of these files is  generated  and
@@ -1087,6 +1115,17 @@
               mode.  It is better to use a different  viewer:  SumatraPDF  and
               gsview are good possibilities.
 
+
+
+                               26 December 2019                             17
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
               There  are  some  other methods for arranging an update, notably
               useful for many versions of xdvi and xpdf.  These are  best  set
               in latexmk's configuration; see below.
@@ -1114,18 +1153,6 @@
               Don't do timeout in pvc mode after inactivity.
 
 
-
-
-
-                                 18 June 2019                               17
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
        -pvctimeoutmins=<time>
               Set period of inactivity in minutes for pvc timeout.
 
@@ -1153,6 +1180,18 @@
               during latexmk's parsing of its command line.  See the -e option
               for  a  way  of giving initialization code directly on latexmk's
               command line.  An error results in latexmk  stopping.   Multiple
+
+
+
+                               26 December 2019                             18
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
               instances of the -r and -e options can be used, and they are ex-
               ecuted in the order they appear on the command line.
 
@@ -1182,16 +1221,6 @@
               processing.  (This is the default.)
 
 
-
-                                 18 June 2019                               18
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
        -showextraoptions
               Show the list of extra latex and pdflatex options  that  latexmk
               recognizes,  but  that  it simply passes through to the programs
@@ -1217,6 +1246,18 @@
               -recorder)  that  trigger special actions or behavior by latexmk
               itself as well as being passed in some form to the called  latex
               and  pdflatex  program,  or  that affect other programs as well.
+
+
+
+                               26 December 2019                             19
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
               These options do have entries in this documentation.  These  op-
               tions  are:  -jobname=STRING, -aux-directory=dir, -output-direc-
               tory=DIR, -quiet, and -recorder.
@@ -1247,17 +1288,6 @@
               Sets  the commands for latex, etc, so that they are the standard
               ones. This is useful to override special configurations.
 
-
-
-                                 18 June 2019                               19
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
               The result is that $latex = 'latex %O  %S',  and  similarly  for
               $pdflatex,  $lualatex, and $xelatex.  (The option -no-pdf needed
               for $xelatex is provided automatically, given that %O appears in
@@ -1282,6 +1312,18 @@
               gram to try to make the missing files.
 
               Note  that  the  filename may be specified without an extension,
+
+
+
+                               26 December 2019                             20
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
               e.g., by \includegraphics{drawing} in a  LaTeX  file.   In  that
               case,  latexmk  will try making drawing.ext with ext set in turn
               to the possible extensions that are relevant for  latex  (or  as
@@ -1312,18 +1354,6 @@
        -usepretex=CODE
               Equivalent to -pretex=CODE -usepretex.  Example
 
-
-
-
-                                 18 June 2019                               20
-
-
-
-
-
-LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
-
-
                 latexmk -usepretex='\AtBeginDocument{Message\par}' foo.tex
 
 
@@ -1348,6 +1378,18 @@
               be opened.
 
 
+
+
+
+                               26 December 2019                             21
+
+
+
+
+
+LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
+
+
        -Werror
               This  causes  latexmk to return a non-zero status code if any of
               the files processed gives a warning about  problems  with  cita-
@@ -1374,24 +1416,46 @@
               versions  of latexmk. Latexmk first uses xelatex to make an .xdv
               file, and does all the extra runs  needed  (including  those  of
               bibtex,  etc).   Only  after that does it make the pdf file from
-              the .xdv file, using xdvipdfmx.  This procedure  can  result  in
-              considerable  savings  in run time, since the xdv-to-pdf conver-
-              sion is quite time-consuming when large graphics files are  used
-              in the document.]
+              the .xdv file, using xdvipdfmx.  See the documentation  for  the
+              -pdfxe for why this is done.]
 
 
+       -xelatex="COMMAND"
+              This  sets the string specifying the command to run xelatex.  It
+              sets the variable $xelatex.
 
-                                 18 June 2019                               21
+              Warning: It is important to ensure that the -no-pdf is used when
+              xelatex  is invoked, since latexmk expects xelatex to produce an
+              .xdv file, not a .pdf file. If you provide  %O  in  the  command
+              specification,  this  will be done automatically.  See the docu-
+              mentation for the -pdfxe option for why  latexmk  makes  a  .xdv
+              file rather than a .pdf file when xelatex is used.
 
+              An example of the use of the -pdfxelatex option:
 
+                   latexmk  -pdfxe  -pdfxelatex="xelatex --shell-escape %O %S"
+              foo.tex
 
+              Note: This option when provided with the COMMAND  argument  only
+              sets  the command for invoking lualatex; it does not turn on the
+              use of lualatex. That is done by other options or in an initial-
+              ization file.
 
 
+       Compatibility between options
+
+
+
+
+                               26 December 2019                             22
+
+
+
+
+
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       Compatibility between options
-
        The  preview-continuous option -pvc can only work with one file.  So in
        this case you will normally only specify one filename  on  the  command
        line.
@@ -1445,18 +1509,19 @@
        of latexmk's behavior is configurable to deal  with  particular  situa-
        tions.  (But there is a lot of reading!)
 
+       The  remainder  of  these notes consists of ideas for dealing with more
 
 
-                                 18 June 2019                               22
 
+                               26 December 2019                             23
 
 
 
 
+
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       The  remainder  of  these notes consists of ideas for dealing with more
        difficult situations.
 
        d. Further tricks can involve replacing the standard commands that  la-
@@ -1510,10 +1575,11 @@
        tion.   The  difference in output file type can happen for two reasons:
        One is that for latex, pdflatex and lualatex the  document  itself  can
        override  the defaults. The other is that there may be a configuration,
+       or misconfiguration, such that the  program  that  latexmk  invokes  to
 
 
 
-                                 18 June 2019                               23
+                               26 December 2019                             24
 
 
 
@@ -1522,10 +1588,9 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       or misconfiguration, such that the program that latexmk invokes to com-
-       pile  the  document is not the expected one, or is given options incom-
-       patible with what latexmk initially expects.  (E.g.,  the  -output-for-
-       mat=...   option  could  be used with lualatex, or xelatex gets invoked
+       compile  the  document is not the expected one, or is given options in-
+       compatible with what latexmk initially expects.   (E.g.,  the  -output-
+       format=...  option could be used with lualatex, or xelatex gets invoked
        without the -no-pdf option.)
 
        Under latex and pdflatex, control of the output format by the  document
@@ -1579,12 +1644,13 @@
 
 
 
-                                 18 June 2019                               24
 
+                               26 December 2019                             25
 
 
 
 
+
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
@@ -1645,7 +1711,7 @@
 
 
 
-                                 18 June 2019                               25
+                               26 December 2019                             26
 
 
 
@@ -1711,7 +1777,7 @@
 
 
 
-                                 18 June 2019                               26
+                               26 December 2019                             27
 
 
 
@@ -1777,7 +1843,7 @@
 
 
 
-                                 18 June 2019                               27
+                               26 December 2019                             28
 
 
 
@@ -1843,7 +1909,7 @@
 
 
 
-                                 18 June 2019                               28
+                               26 December 2019                             29
 
 
 
@@ -1909,7 +1975,7 @@
 
 
 
-                                 18 June 2019                               29
+                               26 December 2019                             30
 
 
 
@@ -1975,7 +2041,7 @@
 
 
 
-                                 18 June 2019                               30
+                               26 December 2019                             31
 
 
 
@@ -2041,7 +2107,7 @@
 
 
 
-                                 18 June 2019                               31
+                               26 December 2019                             32
 
 
 
@@ -2107,7 +2173,7 @@
 
 
 
-                                 18 June 2019                               32
+                               26 December 2019                             33
 
 
 
@@ -2173,7 +2239,7 @@
 
 
 
-                                 18 June 2019                               33
+                               26 December 2019                             34
 
 
 
@@ -2239,7 +2305,7 @@
 
 
 
-                                 18 June 2019                               34
+                               26 December 2019                             35
 
 
 
@@ -2305,7 +2371,7 @@
 
 
 
-                                 18 June 2019                               35
+                               26 December 2019                             36
 
 
 
@@ -2366,12 +2432,12 @@
        [""]
 
               These  variables  specify  commands that are executed at certain
-              points of compilations during preview-continuous mode.  One  mo-
-              tivation  for their existance is to allow very useful convenient
+              points of compilations.  One motivation for their  existance  is
+              to   allow   very   useful   convenient  visual  indications  of
 
 
 
-                                 18 June 2019                               36
+                               26 December 2019                             37
 
 
 
@@ -2380,64 +2446,64 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              visual indications of compilation status even  when  the  window
-              receiving the screen output of the compilation is hidden.
+              compilation status even when the  window  receiving  the  screen
+              output  of the compilation is hidden.  This is particularly use-
+              ful in preview-continuous mode.
 
-              The  commands  are  executed  at  the following points: $compil-
-              ing_cmd at the start of compilation, $success_cmd at the end  of
-              a  completely successful compilation, $failure_cmd at the end of
+              The commands are executed  at  the  following  points:  $compil-
+              ing_cmd  at the start of compilation, $success_cmd at the end of
+              a completely successful compilation, $failure_cmd at the end  of
               an unsuccessful compilation, $warning_cmd at the of an otherwise
               successful compilation that gives warnings about undefined cita-
               tions or references or about multiply defined references. If any
-              of  above  variables  is  undefined or blank (the default situa-
+              of above variables is undefined or  blank  (the  default  situa-
               tion), then the corresponding command is not executed.
 
-              However, when $warning_cmd is not set, then in  the  case  of  a
-              compilation  with  warnings  about  references or citations, but
-              with no other error, one or  other  of  $success_cmd  or  $fail-
-              ure_cmd  is  used  (if  it  is  set) according to the setting of
+              However,  when  $warning_cmd  is  not set, then in the case of a
+              compilation with warnings about  references  or  citations,  but
+              with  no  other  error,  one  or other of $success_cmd or $fail-
+              ure_cmd is used (if it is  set)  according  to  the  setting  of
               $warnings_as_errors.
 
               An example of a simple setting of these variables is as follows
 
-                  $compiling_cmd = "xdotool search  --name  \"%D\"  set_window
+                  $compiling_cmd  =  "xdotool  search --name \"%D\" set_window
               --name \"%D compiling\"";
-                  $success_cmd    =  "xdotool  search --name \"%D\" set_window
+                  $success_cmd   = "xdotool search  --name  \"%D\"  set_window
               --name \"%D OK\"";
                   $warning_cmd   = "xdotool search --name \"%D\" ".
                                    "set_window --name \"%D CITE/REF ISSUE\"";
-                  $failure_cmd   = "xdotool search  --name  \"%D\"  set_window
+                  $failure_cmd    =  "xdotool  search --name \"%D\" set_window
               --name \"%D FAILURE\"";
 
-              These  assume  that  the  program xdotool is installed, that the
-              previewer is using an X-Window system for display, and that  the
-              title  of the window contains the name of the displayed file, as
-              it normally does.  When the commands are  executed,  the  place-
-              holder  string  %D  is  replaced  by the name of the destination
+              These assume that the program xdotool  is  installed,  that  the
+              previewer  is using an X-Window system for display, and that the
+              title of the window contains the name of the displayed file,  as
+              it  normally  does.   When the commands are executed, the place-
+              holder string %D is replaced by  the  name  of  the  destination
               file, which is the previewed file.  The above commands result in
               an appropriate string being appended to the filename in the win-
               dow title: " compiling", " OK", or " FAILURE".
 
-              Other placeholders that can be used are %S, %T, and %R, with  %S
-              and  %T normally being identical. These can be useful for a com-
-              mand changing the title of the edit window. The  visual  indica-
-              tion  in a window title can useful, since the user does not have
-              to keep shifting attention to the (possibly hidden)  compilation
+              Other  placeholders that can be used are %S, %T, and %R, with %S
+              and %T normally being identical. These can be useful for a  com-
+              mand  changing  the title of the edit window. The visual indica-
+              tion in a window title can useful, since the user does not  have
+              to  keep shifting attention to the (possibly hidden) compilation
               window to know the status of the compilation.
 
-              More  complicated  situations  can best be handled by defining a
-              Perl subroutine to invoke the necessary commands, and using  the
-              "internal"  keyword  in the definitions to get the subroutine to
+              More complicated situations can best be handled  by  defining  a
+              Perl  subroutine to invoke the necessary commands, and using the
+              "internal" keyword in the definitions to get the  subroutine  to
               be invoked.  (See the section "Format of Command Specifications"
               for how to do this.)
 
-              Naturally,  the  above  settings that invoke the xdotool program
-              are only applicable when the X-Window system  is  used  for  the
-              relevant window(s).  For other cases, you will have to find what
+              Naturally, the above settings that invoke  the  xdotool  program
+              are  only  applicable  when  the X-Window system is used for the
 
 
 
-                                 18 June 2019                               37
+                               26 December 2019                             38
 
 
 
@@ -2446,6 +2512,7 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              relevant window(s).  For other cases, you will have to find what
               software solutions are available.
 
 
@@ -2453,15 +2520,15 @@
               Custom dependency list -- see section on "Custom Dependencies".
 
        @default_excluded_files [()]
-              When latexmk is invoked with no files specified on  the  command
+              When  latexmk  is invoked with no files specified on the command
               line, then, by default, it will process all files in the current
               directory with the extension .tex.  (In general, it will process
               the files specified in the @default_files variable.)
 
               But sometimes you want to exclude particular files from this de-
-              fault list.  In that case you can specify the excluded files  in
+              fault  list.  In that case you can specify the excluded files in
               the array @default_excluded_files.  For example if you wanted to
-              process all .tex files with the exception of  common.tex,  which
+              process  all  .tex files with the exception of common.tex, which
               is a not a standard alone LaTeX file but a file input by some or
               all of the others, you could do
 
@@ -2471,10 +2538,10 @@
 
               If you have a variable or large number of files to be processed,
               this method saves you from having to list them in detail in @de-
-              fault_files and having to update the list every time you  change
+              fault_files  and having to update the list every time you change
               the set of files to be processed.
 
-              Notes:  1.  This variable has no effect except when no files are
+              Notes: 1. This variable has no effect except when no  files  are
               specified on the latexmk command line.  2. Wildcards are allowed
               in @default_excluded_files.
 
@@ -2481,16 +2548,16 @@
        @default_files [("*.tex")]
               Default list of files to be processed.
 
-              If  no filenames are specified on the command line, latexmk pro-
-              cesses all tex files specified in the  @default_files  variable,
-              which  by  default is set to all tex files ("*.tex") in the cur-
-              rent directory.  This is a convenience: just run latexmk and  it
-              will  process  an  appropriate  set of files.  But sometimes you
+              If no filenames are specified on the command line, latexmk  pro-
+              cesses  all  tex files specified in the @default_files variable,
+              which by default is set to all tex files ("*.tex") in  the  cur-
+              rent  directory.  This is a convenience: just run latexmk and it
+              will process an appropriate set of  files.   But  sometimes  you
               want only some of these files to be processed.  In this case you
-              can  list the files to be processed by setting @default_files in
-              an initialization file (e.g., the file "latexmkrc" in  the  cur-
-              rent  directory).  Then if no files are specified on the command
-              line then the files you specify by  setting  @default_files  are
+              can list the files to be processed by setting @default_files  in
+              an  initialization  file (e.g., the file "latexmkrc" in the cur-
+              rent directory).  Then if no files are specified on the  command
+              line  then  the  files you specify by setting @default_files are
               processed.
 
               Three examples:
@@ -2499,11 +2566,10 @@
 
                    @default_files = ("paper1", "paper2.tex");
 
-                   @default_files = ("*.tex", "*.dtx");
 
 
 
-                                 18 June 2019                               38
+                               26 December 2019                             39
 
 
 
@@ -2512,36 +2578,38 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              Note  that more than file may be given, and that the default ex-
+                   @default_files = ("*.tex", "*.dtx");
+
+              Note that more than file may be given, and that the default  ex-
               tension is ".tex".  Wild cards are allowed.  The parentheses are
               because @default_files is an array variable, i.e., a sequence of
               filename specifications is possible.
 
-              If you want latexmk to process all .tex files with a few  excep-
+              If  you want latexmk to process all .tex files with a few excep-
               tions, see the @default_excluded_files array variable.
 
        $dependents_phony [0]
-              If  a  list  of dependencies is output, this variable determines
-              whether to include a phony target for each source file.  If  you
-              use  the  dependents  list  in  a Makefile, the dummy rules work
-              around errors make gives if you remove header files without  up-
+              If a list of dependencies is output,  this  variable  determines
+              whether  to include a phony target for each source file.  If you
+              use the dependents list in a  Makefile,  the  dummy  rules  work
+              around  errors make gives if you remove header files without up-
               dating the Makefile to match.
 
        $dependents_list [0]
-              Whether  to  display  a  list(s) of dependencies at the end of a
+              Whether to display a list(s) of dependencies at  the  end  of  a
               run.
 
        $deps_file ["-"]
-              Name of file to receive list(s) of dependencies at the end of  a
-              run,  to be used if $dependesnt_list is set.  If the filename is
-              "-", then the dependency list is set to stdout  (i.e.,  normally
+              Name  of file to receive list(s) of dependencies at the end of a
+              run, to be used if $dependesnt_list is set.  If the filename  is
+              "-",  then  the dependency list is set to stdout (i.e., normally
               the screen).
 
        $do_cd [0]
-              Whether  to  change working directory to the directory specified
-              for the main source file before processing it.  The default  be-
-              havior  is  not to do this, which is the same as the behavior of
-              latex and pdflatex programs.  This variable is set  by  the  -cd
+              Whether to change working directory to the  directory  specified
+              for  the main source file before processing it.  The default be-
+              havior is not to do this, which is the same as the  behavior  of
+              latex  and  pdflatex  programs.  This variable is set by the -cd
               and -cd- options on latexmk's command line.
 
        $dvi_filter [empty]
@@ -2549,27 +2617,25 @@
               fore other processing.  Equivalent to specifying the -dF option.
 
        $dvi_mode [See below for default]
-              If nonzero, generate a dvi version of the document.   Equivalent
+              If  nonzero, generate a dvi version of the document.  Equivalent
               to the -dvi option.
 
-              The  variable  $dvi_mode  defaults  to 0, but if no explicit re-
-              quests are made for other types of file (postscript, pdf),  then
-              $dvi_mode  will  be  set  to 1.  In addition, if a request for a
-              file for which a .dvi file is  a  prerequisite,  then  $dvi_mode
+              The variable $dvi_mode defaults to 0, but  if  no  explicit  re-
+              quests  are made for other types of file (postscript, pdf), then
+              $dvi_mode will be set to 1.  In addition, if  a  request  for  a
+              file  for  which  a  .dvi file is a prerequisite, then $dvi_mode
               will be set to 1.
 
        $dvi_previewer ["start xdvi %O %S" under UNIX]
-              The  command  to  invoke a dvi-previewer.  [Under MS-Windows the
-              default is "start"; then latexmk arranges to use the  MS-Windows
-              start  program,  which will cause to be run whatever command the
+              The command to invoke a dvi-previewer.   [Under  MS-Windows  the
+              default  is "start"; then latexmk arranges to use the MS-Windows
+              start program, which will cause to be run whatever  command  the
               system has associated with .dvi files.]
 
-              Important note: Normally you will want to have a  previewer  run
-              detached,  so  that  latexmk  doesn't  wait for the previewer to
 
 
 
-                                 18 June 2019                               39
+                               26 December 2019                             40
 
 
 
@@ -2578,64 +2644,64 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              terminate before continuing its work.  So  normally  you  should
-              prefix  the  command by "start ", which flags to latexmk that it
-              should do the detaching of the  previewer  itself  (by  whatever
-              method  is  appropriate to the operating system).  But sometimes
+              Important  note:  Normally you will want to have a previewer run
+              detached, so that latexmk doesn't wait for the previewer to ter-
+              minate  before continuing its work.  So normally you should pre-
+              fix the command by "start ", which  flags  to  latexmk  that  it
+              should  do  the  detaching  of the previewer itself (by whatever
+              method is appropriate to the operating system).   But  sometimes
               letting latexmk do the detaching is not appropriate (for a vari-
-              ety  of non-trivial reasons), so you should put the "start " bit
+              ety of non-trivial reasons), so you should put the "start "  bit
               in yourself, whenever it is needed.
 
        $dvi_previewer_landscape ["start xdvi %O %S"]
               The command to invoke a dvi-previewer in landscape mode.  [Under
-              MS-Windows  the default is "start"; then latexmk arranges to use
-              the MS-Windows start program, which will cause to be  run  what-
+              MS-Windows the default is "start"; then latexmk arranges to  use
+              the  MS-Windows  start program, which will cause to be run what-
               ever command the system has associated with .dvi files.]
 
        $dvipdf ["dvipdf %O %S %D"]
-              Command  to convert .dvi to .pdf file.  A common reconfiguration
-              is to use the dvipdfm command, which needs its  arguments  in  a
+              Command to convert .dvi to .pdf file.  A common  reconfiguration
+              is  to  use  the dvipdfm command, which needs its arguments in a
               different order:
 
                    $dvipdf = "dvipdfm %O -o %D %S";
 
-              WARNING:  The  default  dvipdf  script  generates pdf files with
+              WARNING: The default dvipdf  script  generates  pdf  files  with
               bitmapped fonts, which do not look good when viewed by acroread.
-              That  script  should  be  modified to give dvips the options "-P
+              That script should be modified to give  dvips  the  options  "-P
               pdf" to ensure that type 1 fonts are used in the pdf file.
 
        $dvipdf_silent_switch ["-q"]
               Switch(es) for dvipdf program when silent mode is on.
 
-              N.B. The standard dvipdf program runs silently,  so  adding  the
-              silent  switch has no effect, but is actually innocuous.  But if
-              an alternative program is used, e.g., dvipdfmx, then the  silent
-              switch  has  an  effect.   The  default  setting  is correct for
+              N.B.  The  standard  dvipdf program runs silently, so adding the
+              silent switch has no effect, but is actually innocuous.  But  if
+              an  alternative program is used, e.g., dvipdfmx, then the silent
+              switch has an  effect.   The  default  setting  is  correct  for
               dvipdfm and dvipdfmx.
 
        $dvips ["dvips %O -o %D %S"]
-              The program to used as a filter to convert a .dvi file to a  .ps
-              file.   If pdf is going to be generated from pdf, then the value
-              of the $dvips_pdf_switch variable -- see below --  will  be  in-
+              The  program to used as a filter to convert a .dvi file to a .ps
+              file.  If pdf is going to be generated from pdf, then the  value
+              of  the  $dvips_pdf_switch  variable -- see below -- will be in-
               cluded in the options substituted for "%O".
 
        $dvips_landscape ["dvips -tlandscape %O -o %D %S"]
-              The  program to used as a filter to convert a .dvi file to a .ps
+              The program to used as a filter to convert a .dvi file to a  .ps
               file in landscape mode.
 
        $dvips_pdf_switch ["-P pdf"]
-              Switch(es) for dvips program when pdf file is  to  be  generated
+              Switch(es)  for  dvips  program when pdf file is to be generated
               from .ps file.
 
        $dvips_silent_switch ["-q"]
               Switch(es) for dvips program when silent mode is on.
 
-       $dvi_update_command [""]
-              When  the  dvi  previewer  is  set  to  be  updated by running a
 
 
 
-                                 18 June 2019                               40
+                               26 December 2019                             41
 
 
 
@@ -2644,34 +2710,36 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              command, this is the command that is run.  See  the  information
-              for the variable $dvi_update_method for further information, and
-              see information on the variable $pdf_update_method for an  exam-
-              ple for the analogous case of a pdf previewer.
+       $dvi_update_command [""]
+              When the dvi previewer is set to be updated by  running  a  com-
+              mand,  this is the command that is run.  See the information for
+              the variable $dvi_update_method for further information, and see
+              information  on  the  variable $pdf_update_method for an example
+              for the analogous case of a pdf previewer.
 
        $dvi_update_method [2 under UNIX, 1 under MS-Windows]
-              How  the  dvi  viewer  updates its display when the dvi file has
-              changed.   The  values  here  apply  equally  to  the   $pdf_up-
+              How the dvi viewer updates its display when  the  dvi  file  has
+              changed.    The  values  here  apply  equally  to  the  $pdf_up-
               date_method and to the $ps_update_method variables.
                   0 => update is automatic,
                   1=> manual update by user, which may only mean a mouse click
               on the viewer's window or may mean a more serious action.
-                  2 => Send the  signal,  whose  number  is  in  the  variable
-              $dvi_update_signal.   The  default  value under UNIX is suitable
+                  2  =>  Send  the  signal,  whose  number  is in the variable
+              $dvi_update_signal.  The default value under  UNIX  is  suitable
               for xdvi.
-                  3 => Viewer cannot do an update, because it locks the  file.
+                  3  => Viewer cannot do an update, because it locks the file.
               (As with acroread under MS-Windows.)
-                  4  => run a command to do the update.  The command is speci-
+                  4 => run a command to do the update.  The command is  speci-
               fied by the variable $dvi_update_command.
 
-              See information on the variable $pdf_update_method for an  exam-
+              See  information on the variable $pdf_update_method for an exam-
               ple of updating by command.
 
-       $dvi_update_signal  [Under  UNIX:  SIGUSR1, which is a system-dependent
+       $dvi_update_signal [Under UNIX: SIGUSR1, which  is  a  system-dependent
        value]
-              The number of the signal that is sent to the dvi viewer when  it
-              is  updated  by  sending  a signal -- see the information on the
-              variable $dvi_update_method.  The default value is the  one  ap-
+              The  number of the signal that is sent to the dvi viewer when it
+              is updated by sending a signal -- see  the  information  on  the
+              variable  $dvi_update_method.   The default value is the one ap-
               propriate for xdvi on a UNIX system.
 
        $failure_cmd [undefined]
@@ -2678,30 +2746,28 @@
               See the documentation for $compiling_cmd.
 
        $fdb_ext ["fdb_latexmk"]
-              The  extension  of the file which latexmk generates to contain a
-              database of information on source files.  You will not  normally
+              The extension of the file which latexmk generates to  contain  a
+              database  of information on source files.  You will not normally
               need to change this.
 
-       $filetime_causality_threshold   [5];  $filetime_offset_report_threshold
+       $filetime_causality_threshold  [5];   $filetime_offset_report_threshold
        [30]. (Units of seconds.)
 
               These variables control how latexmk deals with the following is-
-              sue,  which  can  affect  the  use of files that are on a remote
+              sue, which can affect the use of files  that  are  on  a  remote
               filesystem (network share) instead of being on a file system lo-
               cal to the computer running latexmk.  Almost users will not have
-              to worry about these settings, and can ignore the following  ex-
+              to  worry about these settings, and can ignore the following ex-
               planation.
 
-              In  almost all situations, latexmk does not need to use the time
-              stamps of the files it works with.  However, there are a  couple
-              of  situations  when it needs to know whether a certain file was
+              In almost all situations, latexmk does not need to use the  time
+              stamps  of the files it works with.  However, there are a couple
+              of situations when it needs to know whether a certain  file  was
               created in the current run of a program (e.g., (pdf)latex) or is
-              a  leftover  file from a previous run. It does this by comparing
-              the modification time of the file  with  the  system  time  just
 
 
 
-                                 18 June 2019                               41
+                               26 December 2019                             42
 
 
 
@@ -2710,64 +2776,64 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              before the program was started. If the modification time is ear-
-              lier than when the program was started, the file is  a  leftover
-              file,  which  latexmk  treats as if it were not created.  If the
-              filetime is at least the program start time, then it can be  as-
+              a leftover file from a previous run. It does this  by  comparing
+              the  modification time of the file with the system time just be-
+              fore the program was started. If the modification time  is  ear-
+              lier  than  when the program was started, the file is a leftover
+              file, which latexmk treats as if it were not  created.   If  the
+              filetime  is at least the program start time, then it can be as-
               sumed that the file was created in the current run.
 
-              Unfortunately,  this  test  can  fail if the file is on a remote
-              system, since its system time is  not  necessarily  synchronized
-              with  that  of  the  local  system; the timestamps on the remote
-              files are set by the remote system, not the local system.   Gen-
-              erally,  modern  operating  systems  regularly synchronize their
-              time with a server, so the non-synchronization is  mostly  small
+              Unfortunately, this test can fail if the file  is  on  a  remote
+              system,  since  its  system time is not necessarily synchronized
+              with that of the local system;  the  timestamps  on  the  remote
+              files  are set by the remote system, not the local system.  Gen-
+              erally, modern operating  systems  regularly  synchronize  their
+              time  with  a server, so the non-synchronization is mostly small
               (a second or so, or a few seconds).  But even a small difference
               can mess up latexmk's test.
 
               Latexmk measures the time difference between the time on the two
-              systems  and  compensates  for  this.  But the measurement (in a
+              systems and compensates for this.  But  the  measurement  (in  a
               system-independent way) is only accurate to a second or two.  So
-              latexmk  allows  for  a threshold on the difference between file
-              and system time before it concludes that a file  is  a  leftover
-              file  from  a  previous  run.  The configuration variable $file-
-              time_causality_theshhold, which in units of  seconds,  specifies
+              latexmk allows for a threshold on the  difference  between  file
+              and  system  time  before it concludes that a file is a leftover
+              file from a previous  run.  The  configuration  variable  $file-
+              time_causality_theshhold,  which  in units of seconds, specifies
               this threshold.  Luckily high precision is not needed.  The pre-
-              vious run is normally the previous run in a  human  run-edit-run
-              cycle,  and  is  at  least  many seconds back.  A few seconds is
-              therefore  appropriate  for  the  threshold,   $filetime_causal-
-              ity_theshhold;  it  should be non-negative always, and should be
+              vious  run  is normally the previous run in a human run-edit-run
+              cycle, and is at least many seconds  back.   A  few  seconds  is
+              therefore   appropriate  for  the  threshold,  $filetime_causal-
+              ity_theshhold; it should be non-negative always, and  should  be
               bigger than 2 if a remote filesystem or network share is used.
 
-              If the difference in system times on the two systems  is  large,
-              it  normally  indicates that at least one of the systems is mis-
-              configured.   The   variable   $filetime_offset_report_threshold
-              specifies  the  smallest  size  of the difference (or offset) in
-              seconds between the times of the local and remote system  beyond
-              which  the offset is reported.  This is reported at the point in
-              the latexmk's progress that it measures the offset.  The  report
+              If  the  difference in system times on the two systems is large,
+              it normally indicates that at least one of the systems  is  mis-
+              configured.    The   variable  $filetime_offset_report_threshold
+              specifies the smallest size of the  difference  (or  offset)  in
+              seconds  between the times of the local and remote system beyond
+              which the offset is reported.  This is reported at the point  in
+              the  latexmk's  progress that it measures the offset. The report
               is made if silent mode is used and diagnostic mode is not on.
 
 
        $force_mode [0]
-              If  nonzero, continue processing past minor latex errors includ-
+              If nonzero, continue processing past minor latex errors  includ-
               ing unrecognized cross references.  Equivalent to specifying the
               -f option.
 
-       @generated_exts  [(  aux  ,  bbl  , idx , ind , lof , lot , out , toc ,
+       @generated_exts [( aux , bbl , idx , ind , lof , lot  ,  out  ,  toc  ,
        $fdb_ext )]
-              This contains a list of extensions for files that are  generated
-              during  a LaTeX run and that are read in by LaTeX in later runs,
+              This  contains a list of extensions for files that are generated
+              during a LaTeX run and that are read in by LaTeX in later  runs,
               either directly or indirectly.
 
-              This list specifies files known to be generated  by  latex  (and
+              This  list  specifies  files known to be generated by latex (and
               pdflatex, etc).  It is used in two ways: (a) The specified files
-              are deleted in a cleanup operation (with the -c, -C, -CA, -g and
-              -gg  options), and (b) It affects the determination of whether a
 
 
 
-                                 18 June 2019                               42
+                               26 December 2019                             43
 
 
 
@@ -2776,45 +2842,47 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              are deleted in a cleanup operation (with the -c, -C, -CA, -g and
+              -gg options), and (b) It affects the determination of whether  a
               rerun of (pdf)LaTeX is needed after a run that gives an error.
 
               (Concerning item (b): Normally, a change of a source file during
               a run should provoke a rerun.  This includes a file generated by
-              LaTeX, e.g., an aux file, that is read in  on  subsequent  runs.
-              But  after  a run that results in an error, a new run should not
-              occur until the user has made a change in the  files.   But  the
-              user  may  have  corrected an error in a source .tex file during
+              LaTeX,  e.g.,  an  aux file, that is read in on subsequent runs.
+              But after a run that results in an error, a new run  should  not
+              occur  until  the  user has made a change in the files.  But the
+              user may have corrected an error in a source  .tex  file  during
               the run.  So latexmk needs to distinguish user-generated and au-
-              tomatically  generated  files;  it  determines the automatically
-              generated files as those with extensions in the list in  @gener-
+              tomatically generated files;  it  determines  the  automatically
+              generated  files as those with extensions in the list in @gener-
               ated_exts.)
 
-              A  convenient way to add an extra extension to the list, without
-              losing the already defined ones is to use a push command in  the
+              A convenient way to add an extra extension to the list,  without
+              losing  the already defined ones is to use a push command in the
               line in an RC file.  E.g.,
 
                               push @generated_exts, "end";
 
               adds the extension "end" to the list of predefined generated ex-
-              tensions.  (This extension is used by the  RevTeX  package,  for
+              tensions.   (This  extension  is used by the RevTeX package, for
               example.)
 
        $go_mode [0]
-              If  nonzero, process files regardless of timestamps, and is then
+              If nonzero, process files regardless of timestamps, and is  then
               equivalent to the -g option.
 
        %hash_calc_ignore_pattern
               !!!This variable is for experts only!!!
 
-              The general rule latexmk uses for determining when an extra  run
-              of  some  program  is needed is that one of the source files has
-              changed.  But consider for example a latex package  that  causes
-              an  encapsulated postscript file (an "eps" file) to be made that
-              is to be read in on the next run.  The file contains  a  comment
-              line  giving  its  creation  date and time.  On the next run the
-              time changes, latex sees that the  eps  file  has  changed,  and
-              therefore  reruns  latex.  This causes an infinite loop, that is
-              only terminated because latexmk has a limit  on  the  number  of
+              The  general rule latexmk uses for determining when an extra run
+              of some program is needed is that one of the  source  files  has
+              changed.   But  consider for example a latex package that causes
+              an encapsulated postscript file (an "eps" file) to be made  that
+              is  to  be read in on the next run.  The file contains a comment
+              line giving its creation date and time.  On  the  next  run  the
+              time  changes,  latex  sees  that  the eps file has changed, and
+              therefore reruns latex.  This causes an infinite loop,  that  is
+              only  terminated  because  latexmk  has a limit on the number of
               runs to guard against pathological situations.
 
               But the changing line has no real effect, since it is a comment.
@@ -2823,17 +2891,15 @@
                  $hash_calc_ignore_pattern{'eps'} = '^%%CreationDate: ';
 
               This creates a rule for files with extension .eps about lines to
-              ignore.   The left-hand side is a Perl idiom for setting an item
-              in a hash.  Note that the file extension is specified without  a
+              ignore.  The left-hand side is a Perl idiom for setting an  item
+              in  a hash.  Note that the file extension is specified without a
               period.  The value, on the right-hand side, is a string contain-
-              ing a regular expresssion.  (See documentation on Perl  for  how
-              they  are  to be specified in general.)  This particular regular
-              expression specifies that lines beginning with  "%%CreationDate:
-              "  are  to  be  ignored  in deciding whether a file of the given
+              ing  a  regular expresssion.  (See documentation on Perl for how
+              they are to be specified in general.)  This  particular  regular
 
 
 
-                                 18 June 2019                               43
+                               26 December 2019                             44
 
 
 
@@ -2842,24 +2908,26 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              extension .eps has changed.
+              expression  specifies that lines beginning with "%%CreationDate:
+              " are to be ignored in deciding whether a file of the given  ex-
+              tension .eps has changed.
 
-              There is only one regular expression available for  each  exten-
-              sion.   If you need more one pattern to specify lines to ignore,
-              then you need to combine the patterns into a single regular  ex-
-              pression.   The simplest method is separate the different simple
-              patterns by a vertical bar character  (indicating  "alternation"
+              There  is  only one regular expression available for each exten-
+              sion.  If you need more one pattern to specify lines to  ignore,
+              then  you need to combine the patterns into a single regular ex-
+              pression.  The simplest method is separate the different  simple
+              patterns  by  a vertical bar character (indicating "alternation"
               in the jargon of regular expressions).  For example,
 
-                 $hash_calc_ignore_pattern{'eps'}  = '^%%CreationDate: |^%%Ti-
+                 $hash_calc_ignore_pattern{'eps'} = '^%%CreationDate:  |^%%Ti-
               tle: ';
 
               causes lines starting with either "^%%CreationDate: " or "^%%Ti-
               tle: " to be ignored.
 
-              It  may happen that a pattern to be ignored is specified in, for
-              example, in a system or user initialization file, and  you  wish
-              to  remove  this  in a file that is read later.  To do this, you
+              It may happen that a pattern to be ignored is specified in,  for
+              example,  in  a system or user initialization file, and you wish
+              to remove this in a file that is read later.  To  do  this,  you
               use Perl's delete function, e.g.,
 
                   delete $hash_calc_ignore_pattern{'eps'};
@@ -2867,89 +2935,90 @@
 
        $jobname [""]
 
-              This specifies the jobname, i.e., the basename that is used  for
-              generated  files  (.aux,  .log,  .dvi, .ps, .pdf, etc).  If this
-              variable is a null string, then the basename is the basename  of
-              the  main  tex file.  (At present, the string in $jobname should
+              This  specifies the jobname, i.e., the basename that is used for
+              generated files (.aux, .log, .dvi, .ps,  .pdf,  etc).   If  this
+              variable  is a null string, then the basename is the basename of
+              the main tex file.  (At present, the string in  $jobname  should
               not contain spaces.)
 
-              The placeholder '%A' is permitted. This will be  substituted  by
+              The  placeholder  '%A' is permitted. This will be substituted by
               the basename of the TeX file.  The primary purpose is when a va-
-              riety of tex files are to be processed, and you want  to  use  a
-              different  jobname  for  each but one that is distinct for each.
-              Thus if you wanted to compare compilations of a set of files  on
+              riety  of  tex  files are to be processed, and you want to use a
+              different jobname for each but one that is  distinct  for  each.
+              Thus  if you wanted to compare compilations of a set of files on
               different operating systems, with distinct filenames for all the
               cases, you could set
 
                  $jobname = "%A-$^O";
 
-              in an initialization file.  (Here $^O is a variable provided  by
+              in  an initialization file.  (Here $^O is a variable provided by
               perl that contains perl's name for the operating system.)
 
-              Suppose  you  had .tex files test1.tex and test2.tex.  Then when
+              Suppose you had .tex files test1.tex and test2.tex.   Then  when
               you run
 
                  latexmk -pdf *.tex
 
-              both files will be compiled.  The .aux,  .log,  and  .pdf  files
-              will  have  basenames  test1-MSWin32 ante test2-MSWin32 on a MS-
+              both  files  will  be  compiled.  The .aux, .log, and .pdf files
+              will have basenames test1-MSWin32 ante test2-MSWin32  on  a  MS-
               Windows system, test1-darwin and test2-darwin on an OS-X system,
-              and a variety of similar cases on linux systems.
 
 
 
+                               26 December 2019                             45
 
-                                 18 June 2019                               44
 
 
 
 
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              and a variety of similar cases on linux systems.
+
+
        $kpsewhich ["kpsewhich %S"]
-              The  program  called to locate a source file when the name alone
-              is not sufficient.  Most filenames used by latexmk  have  suffi-
+              The program called to locate a source file when the  name  alone
+              is  not  sufficient.  Most filenames used by latexmk have suffi-
               cient path information to be found directly.  But sometimes, no-
               tably when a .bib or a .bst file is found from the log file of a
-              bibtex  or  biber  run, only the base name of the file is known,
+              bibtex or biber run, only the base name of the  file  is  known,
               but not its path. The program specified by $kpsewhich is used to
               find it.
 
-              (For  advanced  users: Because of the different way in which la-
+              (For advanced users: Because of the different way in  which  la-
               texmk uses the command specified in $kpsewhich, some of the pos-
               sibilities listed in the FORMAT OF COMMAND SPECIFICATIONS do not
-              apply.  The internal and start keywords  are  not  available.  A
+              apply.   The  internal  and  start keywords are not available. A
               simple command specification with possible options and then "%S"
-              is all that is guaranteed to work.  Note  that  for  other  com-
+              is  all  that  is  guaranteed to work.  Note that for other com-
               mands, "%S" is substituted by a single source file. In contrast,
               for $kpsewhich, "%S" may be substituted by a long list of space-
-              separated  filenames,  each  of  which is quoted.  The result on
+              separated filenames, each of which is  quoted.   The  result  on
               STDOUT of running the command is then piped to latexmk.)
 
-              See also the @BIBINPUTS variable for another  way  that  latexmk
+              See  also  the  @BIBINPUTS variable for another way that latexmk
               also uses to try to locate files; it applies only in the case of
               .bib files.
 
        $kpsewhich_show [0]
-              Whether to show diagnostics about invocations of kpsewhich:  the
-              command  line  use to invoke it and the results.  These diagnos-
-              tics are shown if $kpsewhich_show is non-zero or if  diagnostics
-              mode  is on.  (But in the second case, lots of other diagnostics
-              are also shown.)  Without these  diagnostics  there  is  nothing
-              visible  in  latexmk's  screen output about invocations of kpse-
+              Whether  to show diagnostics about invocations of kpsewhich: the
+              command line use to invoke it and the results.   These  diagnos-
+              tics  are shown if $kpsewhich_show is non-zero or if diagnostics
+              mode is on.  (But in the second case, lots of other  diagnostics
+              are  also  shown.)   Without  these diagnostics there is nothing
+              visible in latexmk's screen output about  invocations  of  kpse-
               which.
 
        $landscape_mode [0]
               If nonzero, run in landscape mode, using the landscape mode pre-
-              viewers  and dvi to postscript converters.  Equivalent to the -l
+              viewers and dvi to postscript converters.  Equivalent to the  -l
               option.  Normally not needed with current previewers.
 
        $latex ["latex %O %S"]
-              Specifies the command line for  the  LaTeX  processing  program.
-              Note  that as with other programs, you can use this variable not
-              just to change the name of the program used,  but  also  specify
+              Specifies  the  command  line  for the LaTeX processing program.
+              Note that as with other programs, you can use this variable  not
+              just  to  change  the name of the program used, but also specify
               options to the program.  E.g.,
 
                                   $latex = "latex --src-specials %O %S";
@@ -2958,36 +3027,37 @@
               tex, and $xelatex, see the section "Advanced Configuration".
 
 
-       %latex_input_extensions
-              This variable specifies the extensions tried by latexmk when  it
-              finds  that a LaTeX run resulted in an error that a file has not
-              been found, and the file is given without  an  extension.   This
 
 
 
-                                 18 June 2019                               45
 
+                               26 December 2019                             46
 
 
 
 
+
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              typically  happens  when LaTeX commands of the form \input{file}
-              or \includegraphics{figure}, when the relevant source file  does
+       %latex_input_extensions
+              This  variable specifies the extensions tried by latexmk when it
+              finds that a LaTeX run resulted in an error that a file has  not
+              been  found,  and  the file is given without an extension.  This
+              typically happens when LaTeX commands of the  form  \input{file}
+              or  \includegraphics{figure}, when the relevant source file does
               not exist.
 
-              In  this  situation, latexmk searches for custom dependencies to
-              make the missing file(s), but restricts  it  to  the  extensions
-              specified  by the variable %latex_input_extensions.  The default
+              In this situation, latexmk searches for custom  dependencies  to
+              make  the  missing  file(s),  but restricts it to the extensions
+              specified by the variable %latex_input_extensions.  The  default
               extensions are 'tex' and 'eps'.
 
-              (For Perl experts: %latex_input_extensions is a hash whose  keys
-              are  the  extensions.   The values are irrelevant.)  Two subrou-
-              tines are provided for manipulating this and the  related  vari-
-              able  %pdflatex_input_extensions,  add_input_ext  and remove_in-
-              put_ext.  They are used as in the following examples are  possi-
+              (For  Perl experts: %latex_input_extensions is a hash whose keys
+              are the extensions.  The values are  irrelevant.)   Two  subrou-
+              tines  are  provided for manipulating this and the related vari-
+              able %pdflatex_input_extensions,  add_input_ext  and  remove_in-
+              put_ext.   They are used as in the following examples are possi-
               ble lines in an initialization file:
 
                   remove_input_ext( 'latex', 'tex' );
@@ -2996,19 +3066,19 @@
 
                   add_input_ext( 'latex', 'asdf' );
 
-              add  the  extension 'asdf to latex_input_extensions.  (Naturally
+              add the extension 'asdf to  latex_input_extensions.   (Naturally
               with such an extension, you should have made an appropriate cus-
               tom dependency for latexmk, and should also have done the appro-
-              priate programming in the LaTeX source file to enable  the  file
-              to  be  read.   The standard extensions are handled by LaTeX and
+              priate  programming  in the LaTeX source file to enable the file
+              to be read.  The standard extensions are handled  by  LaTeX  and
               its graphics/graphicx packages.)
 
        $latex_silent_switch ["-interaction=batchmode"]
-              Switch(es) for the LaTeX processing program when silent mode  is
+              Switch(es)  for the LaTeX processing program when silent mode is
               on.
 
-              If  you  use MikTeX, you may prefer the results if you configure
-              the options to include -c-style-errors, e.g., by  the  following
+              If you use MikTeX, you may prefer the results if  you  configure
+              the  options  to include -c-style-errors, e.g., by the following
               line in an initialization file
 
                 $latex_silent_switch  =  "-interaction=batchmode  -c-style-er-
@@ -3018,7 +3088,7 @@
        $lpr ["lpr %O %S" under UNIX/Linux, "NONE lpr" under MS-Windows]
               The command to print postscript files.
 
-              Under MS-Windows (unlike UNIX/Linux), there is no standard  pro-
+              Under  MS-Windows (unlike UNIX/Linux), there is no standard pro-
               gram for printing files.  But there are ways you can do it.  For
               example, if you have gsview installed, you could use it with the
               option "/p":
@@ -3025,24 +3095,23 @@
 
                   $lpr = '"c:/Program Files/Ghostgum/gsview/gsview32.exe" /p';
 
-              If  gsview  is installed in a different directory, you will need
-              to make the appropriate change.  Note the combination of  single
-              and  double  quotes  around the name.  The single quotes specify
 
 
+                               26 December 2019                             47
 
-                                 18 June 2019                               46
 
 
 
 
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              that this is a string to be assigned to the configuration  vari-
-              able  $lpr.   The double quotes are part of the string passed to
-              the operating system to get the command obeyed; this  is  neces-
+              If gsview is installed in a different directory, you  will  need
+              to  make the appropriate change.  Note the combination of single
+              and double quotes around the name.  The  single  quotes  specify
+              that  this is a string to be assigned to the configuration vari-
+              able $lpr.  The double quotes are part of the string  passed  to
+              the  operating  system to get the command obeyed; this is neces-
               sary because one part of the command name ("Program Files") con-
               tains a space which would otherwise be misinterpreted.
 
@@ -3052,13 +3121,13 @@
        $lpr_pdf ["NONE lpr_pdf"]
               The printing program to print pdf files.
 
-              Under MS-Windows you could set this to use gsview, if it is  in-
+              Under  MS-Windows you could set this to use gsview, if it is in-
               stalled, e.g.,
 
                   $lpr = '"c:/Program Files/Ghostgum/gsview/gsview32.exe" /p';
 
-              If  gsview  is installed in a different directory, you will need
-              to make the appropriate change.  Note the double  quotes  around
+              If gsview is installed in a different directory, you  will  need
+              to  make  the appropriate change.  Note the double quotes around
               the name: this is necessary because one part of the command name
               ("Program Files") contains a space which would otherwise be mis-
               interpreted.
@@ -3065,7 +3134,7 @@
 
        $lualatex ["lualatex %O %S"]
               Specifies the command line for the LaTeX processing program that
-              is to be used when the lualatex program is called for (e.g.,  by
+              is  to be used when the lualatex program is called for (e.g., by
               the option -lualatex.
 
               To do a coordinated setting of all of $latex, $pdflatex, $luala-
@@ -3073,16 +3142,16 @@
 
 
        %lualatex_input_extensions
-              This variable specifies the extensions tried by latexmk when  it
-              finds  that  a lualatex run resulted in an error that a file has
-              not been found, and the file  is  given  without  an  extension.
-              This  typically  happens  when  LaTeX  commands of the form \in-
-              put{file} or \includegraphics{figure}, when the relevant  source
+              This  variable specifies the extensions tried by latexmk when it
+              finds that a lualatex run resulted in an error that a  file  has
+              not  been  found,  and  the  file is given without an extension.
+              This typically happens when LaTeX  commands  of  the  form  \in-
+              put{file}  or \includegraphics{figure}, when the relevant source
               file does not exist.
 
-              In  this  situation, latexmk searches for custom dependencies to
-              make the missing file(s), but restricts  it  to  the  extensions
-              specified  by  the variable %pdflatex_input_extensions.  The de-
+              In this situation, latexmk searches for custom  dependencies  to
+              make  the  missing  file(s),  but restricts it to the extensions
+              specified by the variable %pdflatex_input_extensions.   The  de-
               fault extensions are 'tex', 'pdf', 'jpg, and 'png'.
 
               See details of the %latex_input_extensions for other information
@@ -3089,23 +3158,23 @@
               that equally applies to %lualatex_input_extensions.
 
        $lualatex_silent_switch ["-interaction=batchmode"]
-              Switch(es)  for  the lualatex program (specified in the variable
+              Switch(es) for the lualatex program (specified in  the  variable
               $lualatex) when silent mode is on.
 
-              See details of the $latex_silent_switch  for  other  information
-              that equally applies to $lualatex_silent_switch.
 
 
+                               26 December 2019                             48
 
-                                 18 June 2019                               47
 
 
 
 
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              See  details  of  the $latex_silent_switch for other information
+              that equally applies to $lualatex_silent_switch.
+
        $make ["make"]
               The make processing program.
 
@@ -3113,31 +3182,31 @@
               The index processing program.
 
        $makeindex_silent_switch ["-q"]
-              Switch(es)  for the index processing program when silent mode is
+              Switch(es) for the index processing program when silent mode  is
               on.
 
        $max_repeat [5]
-              The maximum number of times latexmk will run latex/pdflatex  be-
-              fore  deciding  that  there  may be an infinite loop and that it
+              The  maximum number of times latexmk will run latex/pdflatex be-
+              fore deciding that there may be an infinite  loop  and  that  it
               needs to bail out, rather than rerunning latex/pdflatex again to
-              resolve  cross-references,  etc.   The  default value covers all
+              resolve cross-references, etc.  The  default  value  covers  all
               normal cases.
 
-              (Note that the "etc" covers a lot of cases where one run of  la-
+              (Note  that the "etc" covers a lot of cases where one run of la-
               tex/pdflatex generates files to be read in on a later run.)
 
        $MSWin_back_slash [1]
-              This  configuration  variable only has an effect when latexmk is
+              This configuration variable only has an effect when  latexmk  is
               running under MS-Windows.  It determines whether, when a command
-              is  executed  under  MS-Windows, there should be substituted "\"
-              for the separator character between components  of  a  directory
-              name.   Internally, latexmk uses "/" for the directory separator
+              is executed under MS-Windows, there should  be  substituted  "\"
+              for  the  separator  character between components of a directory
+              name.  Internally, latexmk uses "/" for the directory  separator
               character, which is the character used by Unix-like systems.
 
               For many programs under MS-Windows, both "\" and "/" are accept-
-              able  as  the  directory separator character.  But some programs
-              only accept "\" on the command  line.   So  for  safety  latexmk
-              makes  a  translation, by default.  It is conceivable that under
+              able as the directory separator character.   But  some  programs
+              only  accept  "\"  on  the  command line.  So for safety latexmk
+              makes a translation, by default.  It is conceivable  that  under
               certain situations this is undesirable, so the configuration can
               be changed.  (A possible example might be when some of the soft-
               ware is implemented using Cygwin, which provides a Unix-like en-
@@ -3144,26 +3213,23 @@
               vironment inside MS-Windows.)
 
        $new_viewer_always [0]
-              This  variable  applies  to  latexmk  only in continuous-preview
+              This variable applies  to  latexmk  only  in  continuous-preview
               mode.  If $new_viewer_always is 0, latexmk will check for a pre-
-              viously  running  previewer on the same file, and if one is run-
-              ning will not start a new one.  If  $new_viewer_always  is  non-
-              zero,  this check will be skipped, and latexmk will behave as if
+              viously running previewer on the same file, and if one  is  run-
+              ning  will  not  start a new one.  If $new_viewer_always is non-
+              zero, this check will be skipped, and latexmk will behave as  if
               no viewer is running.
 
        $out_dir [""]
-              If non-blank, this variable specifies  the  directory  in  which
+              If  non-blank,  this  variable  specifies the directory in which
               output files are to be written by a run of (pdf)latex.  See also
               the variable $aux_dir.
 
-              The effect of this variable (when non-blank) is achieved by  us-
-              ing  the -output-directory option of (pdf)latex.  This exists in
-              the usual current (Dec. 2011 and later) implementations of  TeX,
-              i.e.,  MiKTeX  and  TeXLive.  But it may not be present in other
+              The  effect  of  this  variable  (when non-blank) is achieved by
 
 
 
-                                 18 June 2019                               48
+                               26 December 2019                             49
 
 
 
@@ -3172,47 +3238,50 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              versions.
+              using the -output-directory option of (pdf)latex.   This  exists
+              in  the  usual  current (Dec. 2011 and later) implementations of
+              TeX, i.e., MiKTeX and TeXLive. But it  may  not  be  present  in
+              other versions.
 
-              If you also use the -cd option, and $out_dir (or $aux_dir)  con-
-              tains  a relative path, then the path is interpreted relative to
+              If  you also use the -cd option, and $out_dir (or $aux_dir) con-
+              tains a relative path, then the path is interpreted relative  to
               the document directory.
 
-              Commonly, the directory specified for output files is  a  subdi-
+              Commonly,  the  directory specified for output files is a subdi-
               rectory of the current working directory.  However, if you spec-
-              ify some other directory, e.g., "/tmp/foo"  or  "../output",  be
-              aware  that  this  could cause problems, e.g., with makeindex or
-              bibtex.  This is because modern versions of these  programs,  by
-              default,  will refuse to work when they find that they are asked
-              to write to a file in a directory that appears  not  to  be  the
+              ify  some  other  directory, e.g., "/tmp/foo" or "../output", be
+              aware that this could cause problems, e.g.,  with  makeindex  or
+              bibtex.   This  is because modern versions of these programs, by
+              default, will refuse to work when they find that they are  asked
+              to  write  to  a  file in a directory that appears not to be the
               current working directory or one of its subdirectories.  This is
-              part of security measures by the whole TeX system  that  try  to
+              part  of  security  measures by the whole TeX system that try to
               prevent malicious or errant TeX documents from incorrectly mess-
               ing with a user's files.  If for $out_dir or $aux_dir you really
-              do  need to specify an absolute pathname (e.g., "/tmp/foo") or a
+              do need to specify an absolute pathname (e.g., "/tmp/foo") or  a
               path (e.g., "../output") that includes a higher-level directory,
-              and  you  need to use makeindex or bibtex, then you need to dis-
-              able the security measures (and assume any risks).  One  way  of
+              and you need to use makeindex or bibtex, then you need  to  dis-
+              able  the  security measures (and assume any risks).  One way of
               doing this is to temporarily set an operating system environment
-              variable openout_any to "a" (as in "all"), to override  the  de-
+              variable  openout_any  to "a" (as in "all"), to override the de-
               fault "paranoid" setting.
 
        $pdf_mode [0]
-              If  zero,  do  NOT  generate  a pdf version of the document.  If
-              equal to 1, generate a pdf version of the document using  pdfla-
-              tex,  using the command specified by the $pdflatex variable.  If
-              equal to 2, generate a pdf version of the document from  the  ps
-              file,  by  using  the command specified by the $ps2pdf variable.
-              If equal to 3, generate a pdf version of the document  from  the
-              dvi  file,  by  using the command specified by the $dvipdf vari-
+              If zero, do NOT generate a pdf  version  of  the  document.   If
+              equal  to 1, generate a pdf version of the document using pdfla-
+              tex, using the command specified by the $pdflatex variable.   If
+              equal  to  2, generate a pdf version of the document from the ps
+              file, by using the command specified by  the  $ps2pdf  variable.
+              If  equal  to 3, generate a pdf version of the document from the
+              dvi file, by using the command specified by  the  $dvipdf  vari-
               able.  If equal to 4, generate a pdf version of the document us-
               ing lualatex, using the command specified by the $lualatex vari-
-              able.  If equal to 5, generate a pdf version (and  an  xdv  ver-
-              sion)  of  the document using xelatex, using the commands speci-
+              able.   If  equal  to 5, generate a pdf version (and an xdv ver-
+              sion) of the document using xelatex, using the  commands  speci-
               fied by the $xelatex and xdvipdfmx variables.
 
-              In $pdf_mode=2, it is ensured that .dvi and .ps files  are  also
-              made.   In  $pdf_mode=3,  it is ensured that a .dvi file is also
+              In  $pdf_mode=2,  it is ensured that .dvi and .ps files are also
+              made.  In $pdf_mode=3, it is ensured that a .dvi  file  is  also
               made.  But this may be overridden by the document.
 
        $pdflatex ["pdflatex %O %S"]
@@ -3224,22 +3293,21 @@
 
                    $pdflatex = "pdflatex --shell-escape %O %S";
 
-              (In some earlier versions of latexmk, you needed to use  an  as-
-              signment  to  $pdflatex  to allow the use of lualatex or xelatex
 
 
+                               26 December 2019                             50
 
-                                 18 June 2019                               49
 
 
 
 
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              (In  some  earlier versions of latexmk, you needed to use an as-
+              signment to $pdflatex to allow the use of  lualatex  or  xelatex
               instead of pdflatex.  There are now separate configuration vari-
-              ables  for  the  use  of lualatex or xelatex.  See $lualatex and
+              ables for the use of lualatex or  xelatex.   See  $lualatex  and
               $xelatex.)
 
               To do a coordinated setting of all of $latex, $pdflatex, $luala-
@@ -3246,16 +3314,16 @@
               tex, and $xelatex, see the section "Advanced Configuration".
 
        %pdflatex_input_extensions
-              This  variable specifies the extensions tried by latexmk when it
-              finds that a pdflatex run resulted in an error that a  file  has
-              not  been  found,  and  the  file is given without an extension.
-              This typically happens when LaTeX  commands  of  the  form  \in-
-              put{file}  or \includegraphics{figure}, when the relevant source
+              This variable specifies the extensions tried by latexmk when  it
+              finds  that  a pdflatex run resulted in an error that a file has
+              not been found, and the file  is  given  without  an  extension.
+              This  typically  happens  when  LaTeX  commands of the form \in-
+              put{file} or \includegraphics{figure}, when the relevant  source
               file does not exist.
 
-              In this situation, latexmk searches for custom  dependencies  to
-              make  the  missing  file(s),  but restricts it to the extensions
-              specified by the variable %pdflatex_input_extensions.   The  de-
+              In  this  situation, latexmk searches for custom dependencies to
+              make the missing file(s), but restricts  it  to  the  extensions
+              specified  by  the variable %pdflatex_input_extensions.  The de-
               fault extensions are 'tex', 'pdf', 'jpg, and 'png'.
 
               See details of the %latex_input_extensions for other information
@@ -3262,40 +3330,38 @@
               that equally applies to %pdflatex_input_extensions.
 
        $pdflatex_silent_switch ["-interaction=batchmode"]
-              Switch(es) for the pdflatex program (specified in  the  variable
+              Switch(es)  for  the pdflatex program (specified in the variable
               $pdflatex) when silent mode is on.
 
-              See  details  of  the $latex_silent_switch for other information
+              See details of the $latex_silent_switch  for  other  information
               that equally applies to $pdflatex_silent_switch.
 
        $pdf_previewer ["start acroread %O %S"]
               The command to invoke a pdf-previewer.
 
-              On MS-Windows, the default is changed to "cmd /c start """;  un-
-              der  more  recent versions of Windows, this will cause to be run
+              On  MS-Windows, the default is changed to "cmd /c start """; un-
+              der more recent versions of Windows, this will cause to  be  run
               whatever command the system has associated with .pdf files.  But
-              this  may  be  undesirable if this association is to acroread --
+              this may be undesirable if this association is  to  acroread  --
               see the notes in the explanation of the -pvc option.]
 
-              On OS-X the default is changed to "open %S",  which  results  in
-              OS-X  starting up (and detaching) the viewer associated with the
-              file.  By default, for pdf files this association is  to  OS-X's
+              On  OS-X  the  default is changed to "open %S", which results in
+              OS-X starting up (and detaching) the viewer associated with  the
+              file.   By  default, for pdf files this association is to OS-X's
               preview, which is quite satisfactory.
 
-              WARNING:   Problem  under MS-Windows: if acroread is used as the
-              pdf previewer, and it is actually viewing a pdf  file,  the  pdf
-              file  cannot  be  updated.   Thus makes acroread a bad choice of
-              previewer if you use latexmk's previous-continuous mode  (option
+              WARNING:  Problem under MS-Windows: if acroread is used  as  the
+              pdf  previewer,  and  it is actually viewing a pdf file, the pdf
+              file cannot be updated.  Thus makes acroread  a  bad  choice  of
+              previewer  if you use latexmk's previous-continuous mode (option
               -pvc) under MS-windows.  This problem does not occur if, for ex-
               ample, SumatraPDF or gsview is used to view pdf files.
 
-              Important note: Normally you will want to have a  previewer  run
-              detached, so that latexmk doesn't wait for the previewer to ter-
-              minate before continuing  its  work.   So  normally  you  should
+              Important  note:  Normally you will want to have a previewer run
 
 
 
-                                 18 June 2019                               50
+                               26 December 2019                             51
 
 
 
@@ -3304,25 +3370,27 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              prefix  the  command by "start ", which flags to latexmk that it
-              should do the detaching of the  previewer  itself  (by  whatever
-              method  is  appropriate to the operating system).  But sometimes
+              detached, so that latexmk doesn't wait for the previewer to ter-
+              minate  before continuing its work.  So normally you should pre-
+              fix the command by "start ", which  flags  to  latexmk  that  it
+              should  do  the  detaching  of the previewer itself (by whatever
+              method is appropriate to the operating system).   But  sometimes
               letting latexmk do the detaching is not appropriate (for a vari-
-              ety  of non-trivial reasons), so you should put the "start " bit
+              ety of non-trivial reasons), so you should put the "start "  bit
               in yourself, whenever it is needed.
 
        $pdf_update_command [""]
-              When the pdf previewer is set to be updated by  running  a  com-
-              mand,  this is the command that is run.  See the information for
+              When  the  pdf  previewer is set to be updated by running a com-
+              mand, this is the command that is run.  See the information  for
               the variable $pdf_update_method.
 
        $pdf_update_method [1 under UNIX, 3 under MS-Windows]
-              How the pdf viewer updates its display when  the  pdf  file  has
-              changed.  See the information on the variable $dvi_update_method
+              How  the  pdf  viewer  updates its display when the pdf file has
+              changed. See the information on the variable  $dvi_update_method
               for the codes.  (Note that information needs be changed slightly
-              so  that for the value 4, to run a command to do the update, the
-              command is specified by the  variable  $pdf_update_command,  and
-              for  the  value  2,  to  specify update by signal, the signal is
+              so that for the value 4, to run a command to do the update,  the
+              command  is  specified  by the variable $pdf_update_command, and
+              for the value 2, to specify update  by  signal,  the  signal  is
               specified by $pdf_update_signal.)
 
               Note that acroread under MS-Windows (but not UNIX) locks the pdf
@@ -3335,52 +3403,52 @@
                   $pdf_update_method = 4;
                   $pdf_update_command = "xpdf -remote %R -reload";
 
-              The first setting arranges for the xpdf program to  be  used  in
-              its  "remote server mode", with the server name specified as the
-              rootname of the TeX file.  The second setting arranges  for  up-
-              dating  to  be done in response to a command, and the third set-
+              The  first  setting  arranges for the xpdf program to be used in
+              its "remote server mode", with the server name specified as  the
+              rootname  of  the TeX file.  The second setting arranges for up-
+              dating to be done in response to a command, and the  third  set-
               ting sets the update command.
 
-       $pdf_update_signal [Under UNIX: SIGHUP,  which  is  a  system-dependent
+       $pdf_update_signal  [Under  UNIX:  SIGHUP,  which is a system-dependent
        value]
-              The  number of the signal that is sent to the pdf viewer when it
-              is updated by sending a signal -- see  the  information  on  the
-              variable  $pdf_update_method.   The default value is the one ap-
+              The number of the signal that is sent to the pdf viewer when  it
+              is  updated  by  sending  a signal -- see the information on the
+              variable $pdf_update_method.  The default value is the  one  ap-
               propriate for gv on a UNIX system.
 
        $pid_position[1 under UNIX, -1 under MS-Windows]
-              The variable $pid_position is used  to  specify  which  word  in
-              lines  of  the output from $pscmd corresponds to the process ID.
-              The first word in the line is numbered 0.  The default value  of
+              The  variable  $pid_position  is  used  to specify which word in
+              lines of the output from $pscmd corresponds to the  process  ID.
+              The  first word in the line is numbered 0.  The default value of
               1 (2nd word in line) is correct for Solaris 2.6, Linux, and OS-X
               with their default settings of $pscmd.
 
-              Setting the variable to -1 is used to indicate  that  $pscmd  is
-              not to be used.
+              Setting  the  variable  to -1 is used to indicate that $pscmd is
 
 
 
+                               26 December 2019                             52
 
-                                 18 June 2019                               51
 
 
 
 
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              not to be used.
+
        $postscript_mode [0]
-              If  nonzero,  generate  a  postscript  version  of the document.
+              If nonzero, generate  a  postscript  version  of  the  document.
               Equivalent to the -ps option.
 
-              If some other request is made for which  a  postscript  file  is
+              If  some  other  request  is made for which a postscript file is
               needed, then $postscript_mode will be set to 1.
 
        $pre_tex_code ['']
 
-              Sets  TeX  code to be executed before inputting the source file.
-              This works if the relevant one of $latex, etc contains  a  suit-
+              Sets TeX code to be executed before inputting the  source  file.
+              This  works  if the relevant one of $latex, etc contains a suit-
               able command line with a %P or %U substitution.  For example you
               could do
 
@@ -3387,7 +3455,7 @@
                    $latex = 'latex %O %P';
                    $pre_tex_code = '\AtBeginDocument{An initial message\par}';
 
-              To set all of $latex, $pdflatex,  $lualatex,  and  $xelatex  you
+              To  set  all  of  $latex, $pdflatex, $lualatex, and $xelatex you
               could use the subroutine alt_tex_cmds:
 
                    &alt_tex_cmds;
@@ -3396,53 +3464,53 @@
 
 
        $preview_continuous_mode [0]
-              If  nonzero,  run a previewer to view the document, and continue
+              If nonzero, run a previewer to view the document,  and  continue
               running latexmk to keep .dvi up-to-date.  Equivalent to the -pvc
-              option.   Which  previewer is run depends on the other settings,
+              option.  Which previewer is run depends on the  other  settings,
               see the command line options -view=, and the variable $view.
 
        $preview_mode [0]
               If nonzero, run a previewer to preview the document.  Equivalent
-              to  the -pv option.  Which previewer is run depends on the other
-              settings, see the command line options -view=, and the  variable
+              to the -pv option.  Which previewer is run depends on the  other
+              settings,  see the command line options -view=, and the variable
               $view.
 
        $printout_mode [0]
-              If  nonzero,  print  the document using the command specified in
+              If nonzero, print the document using the  command  specified  in
               the $lpr variable.  Equivalent to the -p option.  This is recom-
-              mended  not to be set from an RC file, otherwise you could waste
+              mended not to be set from an RC file, otherwise you could  waste
               lots of paper.
 
        $print_type = ["auto"]
-              Type of file  to  printout:  possibilities  are  "auto",  "dvi",
+              Type  of  file  to  printout:  possibilities  are "auto", "dvi",
               "none", "pdf", or "ps".   See the option -print= for the meaning
               of the "auto" value.
 
        $pscmd Command used to get all the processes currently run by the user.
-              The  -pvc  option  uses  the  command  specified by the variable
-              $pscmd to determine if there is an  already  running  previewer,
-              and  to  find  the process ID (needed if latexmk needs to signal
-              the previewer about file changes).
+              The -pvc option uses  the  command  specified  by  the  variable
+              $pscmd  to  determine  if there is an already running previewer,
+              and to find the process ID (needed if latexmk  needs  to  signal
 
 
 
+                               26 December 2019                             53
 
-                                 18 June 2019                               52
 
 
 
 
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
+              the previewer about file changes).
+
               Each line of the output of this command is assumed to correspond
-              to  one  process.   See  the  $pid_position variable for how the
+              to one process.  See the  $pid_position  variable  for  how  the
               process number is determined.
 
-              The default for pscmd is  "NONE"  under  MS-Windows  and  cygwin
-              (i.e.,  the  command  is not used), "ps -ww -u $ENV{USER}" under
-              OS-X, and "ps -f -u $ENV{USER}" under  other  operating  systems
+              The  default  for  pscmd  is  "NONE" under MS-Windows and cygwin
+              (i.e., the command is not used), "ps -ww  -u  $ENV{USER}"  under
+              OS-X,  and  "ps  -f -u $ENV{USER}" under other operating systems
               (including Linux).  In these specifications "$ENV{USER}" is sub-
               stituted by the username.
 
@@ -3451,76 +3519,74 @@
 
        $ps_filter [empty]
               The postscript file filter to be run on the newly produced post-
-              script  file  before other processing.  Equivalent to specifying
+              script file before other processing.  Equivalent  to  specifying
               the -pF option.
 
        $ps_previewer ["start gv %O %S", but start %O %S under MS-Windows]
-              The command to invoke a ps-previewer.  (The  default  under  MS-
+              The  command  to  invoke a ps-previewer.  (The default under MS-
               Windows will cause to be run whatever command the system has as-
               sociated with .ps files.)
 
-              Note that gv could be used with the -watch  option  updates  its
-              display  whenever the postscript file changes, whereas ghostview
-              does not.  However, different versions of gv have slightly  dif-
-              ferent  ways  of  writing  this  option.  You can configure this
+              Note  that  gv  could be used with the -watch option updates its
+              display whenever the postscript file changes, whereas  ghostview
+              does  not.  However, different versions of gv have slightly dif-
+              ferent ways of writing this  option.   You  can  configure  this
               variable appropriately.
 
               WARNING: Linux systems may have installed one (or more) versions
-              of  gv  under  different  names, e.g., ggv, kghostview, etc, but
+              of gv under different names, e.g.,  ggv,  kghostview,  etc,  but
               perhaps not one actually called gv.
 
-              Important note: Normally you will want to have a  previewer  run
+              Important  note:  Normally you will want to have a previewer run
               detached, so that latexmk doesn't wait for the previewer to ter-
-              minate before continuing its work.  So normally you should  pre-
-              fix  the  command  by  "start  ", which flags to latexmk that it
-              should do the detaching of the  previewer  itself  (by  whatever
-              method  is  appropriate to the operating system).  But sometimes
+              minate  before continuing its work.  So normally you should pre-
+              fix the command by "start ", which  flags  to  latexmk  that  it
+              should  do  the  detaching  of the previewer itself (by whatever
+              method is appropriate to the operating system).   But  sometimes
               letting latexmk do the detaching is not appropriate (for a vari-
-              ety  of non-trivial reasons), so you should put the "start " bit
+              ety of non-trivial reasons), so you should put the "start "  bit
               in yourself, whenever it is needed.
 
 
-       $ps_previewer_landscape ["start gv -swap %O %S", but start %O %S  under
+       $ps_previewer_landscape  ["start gv -swap %O %S", but start %O %S under
        MS-Windows]
               The command to invoke a ps-previewer in landscape mode.
 
        $ps_update_command [""]
-              When  the postscript previewer is set to be updated by running a
-              command, this is the command that is run.  See  the  information
+              When the postscript previewer is set to be updated by running  a
+              command,  this  is the command that is run.  See the information
               for the variable $ps_update_method.
 
 
 
+                               26 December 2019                             54
 
 
-                                 18 June 2019                               53
 
 
 
-
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
        $ps_update_method [0 under UNIX, 1 under MS-Windows]
-              How  the postscript viewer updates its display when the .ps file
-              has changed.  See  the  information  on  the  variable  $dvi_up-
-              date_method  for  the  codes.   (Note  that information needs be
+              How the postscript viewer updates its display when the .ps  file
+              has  changed.  See  the  information  on  the  variable $dvi_up-
+              date_method for the codes.   (Note  that  information  needs  be
               changed slightly so that for the value 4, to run a command to do
-              the  update,  the  command  is specified by the variable $ps_up-
-              date_command, and for the value 2, to specify update by  signal,
+              the update, the command is specified  by  the  variable  $ps_up-
+              date_command,  and for the value 2, to specify update by signal,
               the signal is specified by $ps_update_signal.)
 
-       $ps_update_signal  [Under  UNIX:  SIGHUP,  which  is a system-dependent
+       $ps_update_signal [Under UNIX:  SIGHUP,  which  is  a  system-dependent
        value]
-              The number of the signal that is sent to the pdf viewer when  it
-              is  updated  by  sending a signal -- see $ps_update_method.  The
+              The  number of the signal that is sent to the pdf viewer when it
+              is updated by sending a signal --  see  $ps_update_method.   The
               default value is the one appropriate for gv on a UNIX system.
 
        $pvc_timeout [0]
-              If this variable is nonzero, there will be  a   timeout  in  pvc
-              mode  after  a  period of inactivity.  Inactivity means a period
-              when latexmk has detected no file  changes  and  hence  has  not
+              If  this  variable  is  nonzero, there will be a  timeout in pvc
+              mode after a period of inactivity.  Inactivity  means  a  period
+              when  latexmk  has  detected  no  file changes and hence has not
               taken any actions like compiling the document. The period of in-
               activity is in the variable $pvc_timeout_mins.
 
@@ -3536,30 +3602,30 @@
        $quote_filenames [1]
               This specifies whether substitutions for placeholders in command
               specifications  (as  in  $pdflatex)  are  surrounded  by  double
-              quotes.  If this variable is 1 (or any other value Perl  regards
+              quotes.   If this variable is 1 (or any other value Perl regards
               as true), then quoting is done.  Otherwise quoting is omitted.
 
-              The  quoting  method used by latexmk is tested to work correctly
-              under UNIX systems (including Linux and Mac OS-X) and under  MS-
-              Windows.   It  allows  the  use  of filenames containing special
+              The quoting method used by latexmk is tested to  work  correctly
+              under  UNIX systems (including Linux and Mac OS-X) and under MS-
+              Windows.  It allows the  use  of  filenames  containing  special
               characters, notably spaces.  (But note that many versions of la-
-              tex  and  pdflatex  cannot  correctly  deal with TeX files whose
-              names contain spaces.  Latexmk's quoting only ensures that  such
+              tex and pdflatex cannot correctly  deal  with  TeX  files  whose
+              names  contain spaces.  Latexmk's quoting only ensures that such
               filenames are correctly treated by the operating system in pass-
               ing arguments to programs.)
 
        $recorder [1]
-              Whether to use the -recorder option to latex and  pdflatex.  Use
-              of  this option results in a file of extension .fls containing a
-              list of the files that these programs  have  read  and  written.
-              Latexmk  will  then  use  this  file to improve its detection of
-              source files and generated files after a run of latex or  pdfla-
+              Whether  to  use the -recorder option to latex and pdflatex. Use
+              of this option results in a file of extension .fls containing  a
+              list  of  the  files  that these programs have read and written.
+              Latexmk will then use this file  to  improve  its  detection  of
+              source  files and generated files after a run of latex or pdfla-
               tex.
 
 
 
 
-                                 18 June 2019                               54
+                               26 December 2019                             55
 
 
 
@@ -3568,41 +3634,41 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-              It  is generally recommended to use this option (or to configure
+              It is generally recommended to use this option (or to  configure
               the $recorder variable to be on.)  But it only works if (pdf)la-
-              tex  supports  the -recorder option, which is true for most cur-
+              tex supports the -recorder option, which is true for  most  cur-
               rent implementations
 
-              Note about the name of the .fls file:  Most  implementations  of
-              (pdf)latex  produce  an  .fls file with the same basename as the
-              main document's LaTeX, e.g., for Document.tex, the .fls file  is
-              Document.fls.   However,  some  implementations  instead produce
-              files named for the program, i.e.,  latex.fls  or  pdflatex.fls.
-              In  this  second  case,  latexmk  copies the latex.fls or pdfla-
-              tex.fls to a file with the basename of the main LaTeX  document,
+              Note  about  the  name of the .fls file: Most implementations of
+              (pdf)latex produce an .fls file with the same  basename  as  the
+              main  document's LaTeX, e.g., for Document.tex, the .fls file is
+              Document.fls.  However,  some  implementations  instead  produce
+              files  named  for  the program, i.e., latex.fls or pdflatex.fls.
+              In this second case, latexmk  copies  the  latex.fls  or  pdfla-
+              tex.fls  to a file with the basename of the main LaTeX document,
               e.g., Document.fls.
 
        $search_path_separator [See below for default]
               The character separating paths in the environment variables TEX-
-              INPUTS, BIBINPUTS, and BSTINPUTS.  This variable is mainly  used
-              by  latexmk when the -outdir, -output-directory, -auxdir, and/or
-              -aux-directory options are used.  In that case latexmk needs  to
+              INPUTS,  BIBINPUTS, and BSTINPUTS.  This variable is mainly used
+              by latexmk when the -outdir, -output-directory, -auxdir,  and/or
+              -aux-directory  options are used.  In that case latexmk needs to
               communicate  appropriately  modified  search  paths  to  bibtex,
               dvipdf, dvips, and (pdf)latex.
 
-              [Comment to technically savvy readers: (pdf)latex doesn't  actu-
-              ally  need  the modified search path.  But, surprisingly, dvipdf
-              and dvips do, because sometimes graphics files get generated  in
+              [Comment  to technically savvy readers: (pdf)latex doesn't actu-
+              ally need the modified search path.  But,  surprisingly,  dvipdf
+              and  dvips do, because sometimes graphics files get generated in
               the output or aux directories.]
 
-              The  default  under  MSWin and Cygwin is ';' and under UNIX-like
-              operating systems (including Linux and OS-X) is  ':'.   Normally
-              the  defaults give correct behavior.  But there can be difficul-
-              ties if your operating system is of one kind, but some  of  your
-              software  is running under an emulator for the other kind of op-
-              erating system; in that case you'll need to  find  out  what  is
-              needed,  and  set  $search_path_separator explicitly.  (The same
-              goes, of course, for unusual operating systems that are  not  in
+              The default under MSWin and Cygwin is ';'  and  under  UNIX-like
+              operating  systems  (including Linux and OS-X) is ':'.  Normally
+              the defaults give correct behavior.  But there can be  difficul-
+              ties  if  your operating system is of one kind, but some of your
+              software is running under an emulator for the other kind of  op-
+              erating  system;  in  that  case you'll need to find out what is
+              needed, and set $search_path_separator  explicitly.   (The  same
+              goes,  of  course, for unusual operating systems that are not in
               the MSWin, Linux, OS-X, Unix collection.)
 
        $show_time [0]
@@ -3609,23 +3675,23 @@
               Whether to show CPU time used.
 
        $silence_logfile_warnings [0]
-              Whether  after  a run of (pdf)latex to summarize warnings in the
+              Whether after a run of (pdf)latex to summarize warnings  in  the
               log file about undefined citations and references.  Setting $si-
               lence_logfile_warnings=0 gives the summary of warnings (provided
-              silent mode isn't also set), and this is useful to locate  unde-
-              fined  citations  and  references  without searching through the
-              much more verbose log file or the screen output  of  (pdf)latex.
-              But  the  summary can also be excessively annoying.  The default
-              is not to give these warnings.  The command  line  options  -si-
-              lence_logfile_warning_list   and  -silence_logfile_warning_list-
+              silent  mode isn't also set), and this is useful to locate unde-
+              fined citations and references  without  searching  through  the
+              much  more  verbose log file or the screen output of (pdf)latex.
+              But the summary can also be excessively annoying.   The  default
+              is  not  to  give these warnings.  The command line options -si-
+              lence_logfile_warning_list  and   -silence_logfile_warning_list-
               also set this variable.
 
-              Note that multiple occurrences for the same undefined object  on
-              the  same  page  and  same  line  will be compressed to a single
+              Note  that multiple occurrences for the same undefined object on
+              the same page and same line  will  be  compressed  to  a  single
 
 
 
-                                 18 June 2019                               55
+                               26 December 2019                             56
 
 
 
@@ -3637,24 +3703,24 @@
               warning.
 
        $silent [0]
-              Whether to run silently.  Setting $silent to 1 has the same  ef-
+              Whether  to run silently.  Setting $silent to 1 has the same ef-
               fect as the -quiet of -silent options on the command line.
 
        $sleep_time [2]
-              The  time to sleep (in seconds) between checking for source file
+              The time to sleep (in seconds) between checking for source  file
               changes when running with the -pvc option.  This is subject to a
-              minimum  of one second delay, except that zero delay is also al-
+              minimum of one second delay, except that zero delay is also  al-
               lowed.
 
-              A value of exactly 0 gives no delay, and  typically  results  in
+              A  value  of  exactly 0 gives no delay, and typically results in
               100% CPU usage, which may not be desirable.
 
        $texfile_search [""]
-              This  is  an  obsolete  variable, replaced by the @default_files
+              This is an obsolete variable,  replaced  by  the  @default_files
               variable.
 
-              For  backward  compatibility,  if  you  choose  to   set   $tex-
-              file_search,  it  is  a string of space-separated filenames, and
+              For   backward   compatibility,  if  you  choose  to  set  $tex-
+              file_search, it is a string of  space-separated  filenames,  and
               then latexmk replaces @default_files with the filenames in $tex-
               file_search to which is added "*.tex".
 
@@ -3662,29 +3728,29 @@
               See the documentation for $compiling_cmd.
 
        $tmpdir [See below for default]
-              Directory  to  store  temporary  files that latexmk may generate
+              Directory to store temporary files  that  latexmk  may  generate
               while running.
 
-              The default under MSWindows (including cygwin), is to  set  $tm-
-              pdir  to the value of the first of whichever of the system envi-
-              ronment variables TMPDIR or TEMP exists, otherwise to  the  cur-
-              rent  directory.   Under other operating systems (expected to be
-              UNIX/Linux, including OS-X), the default is  the  value  of  the
-              system  environment  variable  TMPDIR  if  it  exists, otherwise
+              The  default  under MSWindows (including cygwin), is to set $tm-
+              pdir to the value of the first of whichever of the system  envi-
+              ronment  variables  TMPDIR or TEMP exists, otherwise to the cur-
+              rent directory.  Under other operating systems (expected  to  be
+              UNIX/Linux,  including  OS-X),  the  default is the value of the
+              system environment  variable  TMPDIR  if  it  exists,  otherwise
               "/tmp".
 
        $use_make_for_missing_files [0]
               Whether to use make to try and make files that are missing after
-              a  run  of  latex or pdflatex, and for which a custom dependency
-              has not been found.  This is generally useful only when  latexmk
-              is  used as part of a bigger project which is built by using the
+              a run of latex or pdflatex, and for which  a  custom  dependency
+              has  not been found.  This is generally useful only when latexmk
+              is used as part of a bigger project which is built by using  the
               make program.
 
               Note that once a missing file has been made, no further calls to
-              make  will  be made on a subsequent run of latexmk to update the
-              file.  Handling this problem is the job of  a  suitably  defined
-              Makefile.   See the section "USING latexmk WITH make" for how to
-              do this.  The intent of calling make from latexmk is  merely  to
+              make will be made on a subsequent run of latexmk to  update  the
+              file.   Handling  this  problem is the job of a suitably defined
+              Makefile.  See the section "USING latexmk WITH make" for how  to
+              do  this.   The intent of calling make from latexmk is merely to
               detect dependencies.
 
 
@@ -3691,7 +3757,7 @@
 
 
 
-                                 18 June 2019                               56
+                               26 December 2019                             57
 
 
 
@@ -3701,50 +3767,50 @@
 
 
        $view ["default"]
-              Which  kind  of  file is to be previewed if a previewer is used.
-              The possible values are  "default",  "dvi",  "ps",  "pdf".   The
+              Which kind of file is to be previewed if a  previewer  is  used.
+              The  possible  values  are  "default",  "dvi", "ps", "pdf".  The
               value of "default" means that the "highest" of the kinds of file
               generated is to be used (among .dvi, .ps and .pdf).
 
 
        $warnings_as_errors [0]
-              Normally latexmk copies the behavior of latex in treating  unde-
-              fined  references  and citations and multiply defined references
-              as conditions that give a warning but not an error.   The  vari-
+              Normally  latexmk copies the behavior of latex in treating unde-
+              fined references and citations and multiply  defined  references
+              as  conditions  that give a warning but not an error.  The vari-
               able $warnings_as_errors controls whether this behavior is modi-
               fied.
 
-              When the variable is non-zero, latexmk at the  end  of  its  run
-              will  return  a  non-zero status code to the operating system if
-              any of the files processed gives a warning about  problems  with
+              When  the  variable  is  non-zero, latexmk at the end of its run
+              will return a non-zero status code to the  operating  system  if
+              any  of  the files processed gives a warning about problems with
               citations or references (i.e., undefined citations or references
               or multiply defined references).  This is after latexmk has com-
-              pleted  all  the runs it needs to try and resolve references and
-              citations.  Thus $warnings_as_errors being  nonzero  causes  la-
+              pleted all the runs it needs to try and resolve  references  and
+              citations.   Thus  $warnings_as_errors  being nonzero causes la-
               texmk to treat such warnings as errors, but only when they occur
-              on the last run of (pdf)latex and only after processing is  com-
-              plete.   A  non-zero value $warnings_as_errors can be set by the
+              on  the last run of (pdf)latex and only after processing is com-
+              plete.  A non-zero value $warnings_as_errors can be set  by  the
               command-line option -Werror.
 
               The default behavior is normally satisfactory in the usual edit-
-              compile-edit  cycle.  But, for example, latexmk can also be used
-              as part of a build process for some bigger  project,  e.g.,  for
-              creating  documentation  in the build of a software application.
-              Then it is often sensible to treat citation and reference  warn-
-              ings  as  errors  that  require  the overall build process to be
-              aborted.  Of course, since multiple runs of (pdf)latex are  gen-
-              erally  needed to resolve references and citations, what matters
-              is not the warnings on the first run, but the  warnings  on  the
+              compile-edit cycle.  But, for example, latexmk can also be  used
+              as  part  of  a build process for some bigger project, e.g., for
+              creating documentation in the build of a  software  application.
+              Then  it is often sensible to treat citation and reference warn-
+              ings as errors that require the  overall  build  process  to  be
+              aborted.   Of course, since multiple runs of (pdf)latex are gen-
+              erally needed to resolve references and citations, what  matters
+              is  not  the  warnings on the first run, but the warnings on the
               last run; latexmk takes this into account appropriately.
 
-              In  addition,  when  preview-continuous mode is used, a non-zero
-              value for $warnings_as_errors changes the use  of  the  commands
-              $failure_cmd,  $warning_cmd,  and  $success_cmd after a complia-
+              In addition, when preview-continuous mode is  used,  a  non-zero
+              value  for  $warnings_as_errors  changes the use of the commands
+              $failure_cmd, $warning_cmd, and $success_cmd  after  a  complia-
               tion.  If there are citation or reference warnings, but no other
-              errors,  the  behavior is as follows. If $warning_cmd is set, it
-              is used.  If it is not set, then then if $warnings_as_errors  is
-              non-zero  and $failure_cmd is set, then $failure_cmd.  Otherwise
-              $success_cmd is used, if it is set.  (The foregoing  explanation
+              errors, the behavior is as follows. If $warning_cmd is  set,  it
+              is  used.  If it is not set, then then if $warnings_as_errors is
+              non-zero and $failure_cmd is set, then $failure_cmd.   Otherwise
+              $success_cmd  is used, if it is set.  (The foregoing explanation
               is rather complicated, because latexmk has to deal with the case
               that one or more of the commands isn't set.)
 
@@ -3751,13 +3817,13 @@
 
        $xdvipdfmx ["xdvipdfmx -o %D %O %S"]
 
-              The program to make a pdf file from an xdv file  (used  in  con-
+              The  program  to  make a pdf file from an xdv file (used in con-
               junction with xelatex when $pdf_mode=5).
 
 
 
 
-                                 18 June 2019                               57
+                               26 December 2019                             58
 
 
 
@@ -3770,17 +3836,19 @@
               Switch(es) for the xdvipdfmx program when silent mode is on.
 
        $xelatex ["xelatex %O %S"]
-              Specifies  the  command line for the LaTeX processing program of
-              when the xelatex program is called for.  See  the  documentation
-              of  the -xelatex option for some special properties of latexmk's
+              Specifies the command line for the LaTeX processing  program  of
+              when  the  xelatex program is called for.  See the documentation
+              of the -xelatex option for some special properties of  latexmk's
               use of xelatex.
 
-              Note about xelatex: Now latexmk uses xelatex  to  make  an  .xdv
-              rather  than  .pdf  file,  with the .pdf file being created in a
-              separate step.  This is enforced by the use of the  -no-pdf  op-
-              tion.   If  %O is part of the command for invoking xelatex, then
-              latexmk will insert the -no-pdf option automatically,  otherwise
-              you must provide the option yourself
+              Note  about xelatex: latexmk uses xelatex to make an .xdv rather
+              than .pdf file, with the .pdf file being created in  a  separate
+              step.  This is enforced by the use of the -no-pdf option.  If %O
+              is part of the command for invoking xelatex, then  latexmk  will
+              insert the -no-pdf option automatically, otherwise you must pro-
+              vide the option yourself.  See the documentation for the  -pdfxe
+              option for why latexmk makes a .xdv file rather than a .pdf file
+              when xelatex is used.
 
               To do a coordinated setting of all of $latex, $pdflatex, $luala-
               tex, and $xelatex, see the section "Advanced Configuration".
@@ -3787,16 +3855,16 @@
 
 
        %xelatex_input_extensions
-              This variable specifies the extensions tried by latexmk when  it
-              finds  that  an xelatex run resulted in an error that a file has
-              not been found, and the file  is  given  without  an  extension.
-              This  typically  happens  when  LaTeX  commands of the form \in-
-              put{file} or \includegraphics{figure}, when the relevant  source
+              This  variable specifies the extensions tried by latexmk when it
+              finds that an xelatex run resulted in an error that a  file  has
+              not  been  found,  and  the  file is given without an extension.
+              This typically happens when LaTeX  commands  of  the  form  \in-
+              put{file}  or \includegraphics{figure}, when the relevant source
               file does not exist.
 
-              In  this  situation, latexmk searches for custom dependencies to
-              make the missing file(s), but restricts  it  to  the  extensions
-              specified  by  the  variable %xelatex_input_extensions.  The de-
+              In this situation, latexmk searches for custom  dependencies  to
+              make  the  missing  file(s),  but restricts it to the extensions
+              specified by the variable  %xelatex_input_extensions.   The  de-
               fault extensions are 'tex', 'pdf', 'jpg, and 'png'.
 
               See details of the %latex_input_extensions for other information
@@ -3803,10 +3871,10 @@
               that equally applies to %xelatex_input_extensions.
 
        $xelatex_silent_switch ["-interaction=batchmode"]
-              Switch(es)  for  the  xelatex program (specified in the variable
+              Switch(es) for the xelatex program (specified  in  the  variable
               $xelatex) when silent mode is on.
 
-              See details of the $latex_silent_switch  for  other  information
+              See  details  of  the $latex_silent_switch for other information
               that equally applies to $xelatex_silent_switch.
 
 
@@ -3813,7 +3881,7 @@
 
 
 CUSTOM DEPENDENCIES
-       In  any RC file a set of custom dependencies can be set up to convert a
+       In any RC file a set of custom dependencies can be set up to convert  a
        file with one extension to a file with another.  An example use of this
        would be to allow latexmk to convert a .fig file to .eps to be included
        in the .tex file.
@@ -3821,22 +3889,20 @@
 
 
 
+                               26 December 2019                             59
 
 
-                                 18 June 2019                               58
 
 
 
-
-
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
    Defining a custom dependency:
        The old method of configuring latexmk to use a custom dependency was to
-       directly  manipulate  the @cus_dep_list array that contains information
-       defining the custom dependencies.  (See  the  section  "Old  Method  of
-       Defining  Custom  Dependencies"  for details.) This method still works,
+       directly manipulate the @cus_dep_list array that  contains  information
+       defining  the  custom  dependencies.   (See  the section "Old Method of
+       Defining Custom Dependencies" for details.) This  method  still  works,
        but is no longer preferred.
 
        A better method is to use the subroutines that allow convenient manipu-
@@ -3849,7 +3915,7 @@
        The arguments are as follows:
 
        from extension:
-              The  extension  of the file we are converting from (e.g. "fig").
+              The extension of the file we are converting from  (e.g.  "fig").
               It is specified without a period.
 
        to extension:
@@ -3856,27 +3922,27 @@
               The extension of the file we are converting to (e.g. "eps").  It
               is specified without a period.
 
-       must:  If  non-zero,  the file from which we are converting must exist,
-              if it doesn't exist latexmk will give an error message and  exit
+       must:  If non-zero, the file from which we are converting  must  exist,
+              if  it doesn't exist latexmk will give an error message and exit
               unless the -f option is specified.  If must is zero and the file
-              we are converting from doesn't exist, then no action  is  taken.
+              we  are  converting from doesn't exist, then no action is taken.
               Generally, the appropriate value of must is zero.
 
        function:
-              The  name  of the subroutine that latexmk should call to perform
-              the file conversion.  The first argument to  the  subroutine  is
+              The name of the subroutine that latexmk should call  to  perform
+              the  file  conversion.   The first argument to the subroutine is
               the base name of the file to be converted without any extension.
-              The subroutines are declared in the syntax of Perl.   The  func-
-              tion  should  return 0 if it was successful and a nonzero number
+              The  subroutines  are declared in the syntax of Perl.  The func-
+              tion should return 0 if it was successful and a  nonzero  number
               if it failed.
 
 
-       Naturally add_cus_dep adds a custom dependency with the specified  from
-       and  to extensions.  If a custom dependency has been previously defined
-       (e.g., in an rcfile that was read earlier), then it is replaced by  the
+       Naturally  add_cus_dep adds a custom dependency with the specified from
+       and to extensions.  If a custom dependency has been previously  defined
+       (e.g.,  in an rcfile that was read earlier), then it is replaced by the
        new one.
 
-       The  subroutine remove_cus_dep removes the specified custom dependency.
+       The subroutine remove_cus_dep removes the specified custom  dependency.
        The subroutine show_cus_dep causes a list of the currently defined cus-
        tom dependencies to be sent to the screen output.
 
@@ -3883,13 +3949,13 @@
 
    How custom dependencies are used:
        An instance of a custom dependency rule is created whenever latexmk de-
-       tects that a run of latex/pdflatex needs to read a file, like a  graph-
-       ics  file,  whose extension is the to-extension of a custom dependency.
-       Then latexmk examines whether a file exists with  the  same  name,  but
+       tects  that a run of latex/pdflatex needs to read a file, like a graph-
+       ics file, whose extension is the to-extension of a  custom  dependency.
+       Then  latexmk  examines  whether  a file exists with the same name, but
 
 
 
-                                 18 June 2019                               59
+                               26 December 2019                             60
 
 
 
@@ -3898,45 +3964,45 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       with  the  corresponding from-extension, as specified in the custom-de-
-       pendency.  If it does, then a corresponding instance of the custom  de-
-       pendency  is created, after which the rule is invoked whenever the des-
-       tination file (the one with the to-extension) is out-of-date  with  re-
+       with the corresponding from-extension, as specified in  the  custom-de-
+       pendency.   If it does, then a corresponding instance of the custom de-
+       pendency is created, after which the rule is invoked whenever the  des-
+       tination  file  (the one with the to-extension) is out-of-date with re-
        spect to the corresponding source file.
 
-       To  make the new destination file, the Perl subroutine specified in the
+       To make the new destination file, the Perl subroutine specified in  the
        rule is invoked, with an argument that is the base name of the files in
-       question.   Simple cases just involve a subroutine invoking an external
-       program; this can be done by following the  templates  below,  even  by
-       those  without  knowledge of the Perl programming language.  Of course,
+       question.  Simple cases just involve a subroutine invoking an  external
+       program;  this  can  be  done by following the templates below, even by
+       those without knowledge of the Perl programming language.   Of  course,
        experts could do something much more elaborate.
 
-       One item in the specification of each custom-dependency  rule,  labeled
-       "must"  above, specifies how the rule should be applied when the source
+       One  item  in the specification of each custom-dependency rule, labeled
+       "must" above, specifies how the rule should be applied when the  source
        file fails to exist.
 
-       When latex reports that an input file (e.g., a graphics file) does  not
+       When  latex reports that an input file (e.g., a graphics file) does not
        exist, latexmk tries to find a source file and a custom dependency that
        can be used to make it.  If it succeeds, then it creates an instance of
-       the  custom  dependency  and invokes it to make the missing file, after
+       the custom dependency and invokes it to make the  missing  file,  after
        which the next pass of latex etc will be able to read the newly created
        file.
 
-       Note  for  advanced  usage: The operating system's environment variable
+       Note for advanced usage: The operating  system's  environment  variable
        TEXINPUTS can be used to specify a search path for finding files by la-
-       tex  etc.   Correspondingly,  when  a missing file is reported, latexmk
-       looks in the directories specified in TEXINPUTS as well as in the  cur-
-       rent  directory, to find a source file from which an instance of a cus-
+       tex etc.  Correspondingly, when a missing  file  is  reported,  latexmk
+       looks  in the directories specified in TEXINPUTS as well as in the cur-
+       rent directory, to find a source file from which an instance of a  cus-
        tom dependency can be used to make the missing file.
 
 
    Function to implement custom dependency, traditional method:
-       The function that implements a custom dependency gets  the  information
+       The  function  that implements a custom dependency gets the information
        on the files to be processed in two ways.  The first is through its one
-       argument; the argument contains the base name of the source and  desti-
+       argument;  the argument contains the base name of the source and desti-
        nation files.  The second way is described later.
 
-       A  simple and typical example of code in an initialization rcfile using
+       A simple and typical example of code in an initialization rcfile  using
        the first method is:
 
            add_cus_dep( 'fig', 'eps', 0, 'fig2eps' );
@@ -3944,18 +4010,18 @@
                system( "fig2dev -Leps \"$_[0].fig\" \"$_[0].eps\"" );
            }
 
-       The first line adds a custom dependency that converts a file  with  ex-
+       The  first  line adds a custom dependency that converts a file with ex-
        tension "fig", as created by the xfig program, to an encapsulated post-
-       script file, with extension "eps".  The remaining lines define  a  sub-
-       routine  that  carries  out  the  conversion.  If a rule for converting
-       "fig" to "eps" files already exists (e.g., from  a  previously  read-in
-       initialization  file),  the latexmk will delete this rule before making
+       script  file,  with extension "eps".  The remaining lines define a sub-
+       routine that carries out the conversion.   If  a  rule  for  converting
+       "fig"  to  "eps"  files already exists (e.g., from a previously read-in
+       initialization file), the latexmk will delete this rule  before  making
        the new one.
 
 
 
 
-                                 18 June 2019                               60
+                               26 December 2019                             61
 
 
 
@@ -3964,24 +4030,24 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       Suppose latexmk is using this rule to convert a  file  "figure.fig"  to
-       "figure.eps".   Then  it  will invoke the fig2eps subroutine defined in
-       the above code with a single argument "figure", which is  the  basename
-       of  each  of the files (possibly with a path component).  This argument
-       is referred to by Perl as $_[0].  In the example above, the  subroutine
+       Suppose  latexmk  is  using this rule to convert a file "figure.fig" to
+       "figure.eps".  Then it will invoke the fig2eps  subroutine  defined  in
+       the  above  code with a single argument "figure", which is the basename
+       of each of the files (possibly with a path component).   This  argument
+       is  referred to by Perl as $_[0].  In the example above, the subroutine
        uses the Perl command system to invoke the program fig2dev.  The double
        quotes around the string are a Perl idiom that signify that each string
-       of  the  form  of a variable name, $_[0] in this case, is to be substi-
+       of the form of a variable name, $_[0] in this case, is  to  be  substi-
        tuted by its value.
 
-       If the return value of the subroutine is non-zero,  then  latexmk  will
-       assume  an  error  occurred during the execution of the subroutine.  In
-       the above example, no explicit return value is given, and  instead  the
-       return  value  is  the value returned by the last (and only) statement,
+       If  the  return  value of the subroutine is non-zero, then latexmk will
+       assume an error occurred during the execution of  the  subroutine.   In
+       the  above  example, no explicit return value is given, and instead the
+       return value is the value returned by the last  (and  only)  statement,
        i.e., the invocation of system, which returns the value 0 on success.
 
-       If you use pdflatex instead of latex, then you will probably prefer  to
-       convert  your graphics files to pdf format, in which case you would re-
+       If  you use pdflatex instead of latex, then you will probably prefer to
+       convert your graphics files to pdf format, in which case you would  re-
        place the above code in an initialization file by
 
            add_cus_dep( 'fig', 'pdf, 0, 'fig2pdf' );
@@ -3989,39 +4055,39 @@
                system( "fig2dev -Lpdf \"$_[0].fig\" \"$_[0].pdf\"" );
            }
 
-       Note 1: In the command lines given in the system commands in the  above
-       examples,  double  quotes have been inserted around the file names (im-
-       plemented by '\"' in the Perl language).  They immunize the running  of
-       the  program against special characters in filenames.  Very often these
-       quotes are not necessary, i.e., they can be omitted.  But  it  is  nor-
-       mally  safer  to  keep them in.  Even though the rules for quoting vary
-       between operating systems, command  shells  and  individual  pieces  of
+       Note  1: In the command lines given in the system commands in the above
+       examples, double quotes have been inserted around the file  names  (im-
+       plemented  by '\"' in the Perl language).  They immunize the running of
+       the program against special characters in filenames.  Very often  these
+       quotes  are  not  necessary, i.e., they can be omitted.  But it is nor-
+       mally safer to keep them in.  Even though the rules  for  quoting  vary
+       between  operating  systems,  command  shells  and individual pieces of
        software, the quotes in the above examples do not cause problems in the
        cases I have tested.
 
-       Note 2: One case in which the quotes are important is  when  the  files
-       are  in  a subdirectory and your operating system is Microsoft Windows.
-       Then the separator character for directory components can be  either  a
-       forward  slash  '/' or Microsoft's more usual backward slash '\'.  For-
-       ward slashes are generated by latexmk,  to  maintain  its  sanity  from
-       software  like  MiKTeX  that mixes both directory separators; but their
+       Note  2:  One  case in which the quotes are important is when the files
+       are in a subdirectory and your operating system is  Microsoft  Windows.
+       Then  the  separator character for directory components can be either a
+       forward slash '/' or Microsoft's more usual backward slash  '\'.   For-
+       ward  slashes  are  generated  by  latexmk, to maintain its sanity from
+       software like MiKTeX that mixes both directory  separators;  but  their
        correct use normally requires quoted filenames.  (See a log file from a
-       run  of  MiKTeX  (at least in v. 2.9) for an example of the use of both
+       run of MiKTeX (at least in v. 2.9) for an example of the  use  of  both
        directory separators.)
 
-       Note 3: The subroutines implementing custom dependencies in  the  exam-
-       ples  given  just  have  a  single  line  invoking an external program.
-       That's the usual situation.  But since the subroutines are in the  Perl
-       language,  you  can  implement  much more complicated processing if you
+       Note  3:  The subroutines implementing custom dependencies in the exam-
+       ples given just have  a  single  line  invoking  an  external  program.
+       That's  the usual situation.  But since the subroutines are in the Perl
+       language, you can implement much more  complicated  processing  if  you
        need it.
 
 
    Removing custom dependencies, and when you might need to do this:
-       If you have some general custom dependencies defined in the  system  or
+       If  you  have some general custom dependencies defined in the system or
 
 
 
-                                 18 June 2019                               61
+                               26 December 2019                             62
 
 
 
@@ -4030,18 +4096,18 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       user  initialization  file,  you may find that for a particular project
-       they are undesirable.  So you might want to delete the  unneeded  ones.
-       A  situation  where this would be desirable is where there are multiple
-       custom dependencies with the same from-extension or the same  to-exten-
-       sion.  In  that case, latexmk might choose a different one from the one
+       user initialization file, you may find that for  a  particular  project
+       they  are  undesirable.  So you might want to delete the unneeded ones.
+       A situation where this would be desirable is where there  are  multiple
+       custom  dependencies with the same from-extension or the same to-exten-
+       sion. In that case, latexmk might choose a different one from  the  one
        you want for a specific project.  As an example, to remove any "fig" to
        "eps" rule you would use:
 
            remove_cus_dep( 'fig', 'eps' );
 
-       If  you  have  complicated sets of custom dependencies, you may want to
-       get a listing of the custom dependencies.  This is done  by  using  the
+       If you have complicated sets of custom dependencies, you  may  want  to
+       get  a  listing  of the custom dependencies.  This is done by using the
        line
 
            show_cus_dep();
@@ -4052,29 +4118,29 @@
    Function implementing custom dependency, alternative methods:
        So far the examples for functions to implement custom dependencies have
        used the argument of the function to specify the base name of converted
-       file.   This  method  has been available since very old versions of la-
+       file.  This method has been available since very old  versions  of  la-
        texmk, and many examples can be found, e.g., on the web.
 
-       However in later versions of latexmk the internal structure of the  im-
+       However  in later versions of latexmk the internal structure of the im-
        plementation of its "rules" for the steps of processing, including cus-
        tom dependencies, became much more powerful.  The function implementing
        a custom dependency is executed within a special context where a number
-       of extra variables and subroutines are  defined.   Publicly  documented
-       ones,  intended  to  be  long-term  stable, are listed below, under the
+       of  extra  variables  and subroutines are defined.  Publicly documented
+       ones, intended to be long-term stable,  are  listed  below,  under  the
        heading "Variables and subroutines for processing a rule".
 
-       Examples of their use is given in the  following  examples,  concerning
+       Examples  of  their  use is given in the following examples, concerning
        multiple index files and glossaries.
 
-       The  only  index-file  conversion built-in to latexmk is from an ".idx"
-       file written on one run of latex/pdflatex to an ".ind" file to be  read
-       in  on  a subsequent run.  But with the index.sty package, for example,
-       you can create extra indexes with extensions that you  configure.   La-
-       texmk  does  not know how to deduce the extensions from the information
-       it has.  But you can easily write a custom dependency.  For example  if
-       your  latex file uses the command "\newindex{special}{ndx}{nnd}{Special
-       index}" you will need to get latexmk to convert files with  the  exten-
-       sion  .ndx  to  .nnd.  The most elementary method is to define a custom
+       The only index-file conversion built-in to latexmk is  from  an  ".idx"
+       file  written on one run of latex/pdflatex to an ".ind" file to be read
+       in on a subsequent run.  But with the index.sty package,  for  example,
+       you  can  create extra indexes with extensions that you configure.  La-
+       texmk does not know how to deduce the extensions from  the  information
+       it  has.  But you can easily write a custom dependency.  For example if
+       your latex file uses the command  "\newindex{special}{ndx}{nnd}{Special
+       index}"  you  will need to get latexmk to convert files with the exten-
+       sion .ndx to .nnd.  The most elementary method is to  define  a  custom
        dependency as follows:
 
            add_cus_dep( 'ndx', 'nnd', 0, 'ndx2nnd' );
@@ -4083,11 +4149,11 @@
            }
            push @generated_exts, 'ndx', 'nnd';
 
-       Notice the added line compared with earlier examples.  The  extra  line
+       Notice  the  added line compared with earlier examples.  The extra line
 
 
 
-                                 18 June 2019                               62
+                               26 December 2019                             63
 
 
 
@@ -4100,9 +4166,9 @@
        generated files; then the extra index files will be deleted by clean-up
        operations
 
-       But  if  you have yet more indexes with yet different extensions, e.g.,
-       "adx" and "and", then you will need a separate function for  each  pair
-       of  extensions.   This  is  quite  annoying.  You can use the Run_subst
+       But if you have yet more indexes with yet different  extensions,  e.g.,
+       "adx"  and  "and", then you will need a separate function for each pair
+       of extensions.  This is quite annoying.   You  can  use  the  Run_subst
        function to simplify the definitions to use a single function:
 
            add_cus_dep( 'ndx', 'nnd', 0, 'dx2nd' );
@@ -4121,8 +4187,8 @@
            }
            push @generated_exts, 'ndx', 'nnd', 'adx', 'and';
 
-       This last example uses the command specification in $makeindex, and  so
-       any  customization you have made for the standard index also applies to
+       This  last example uses the command specification in $makeindex, and so
+       any customization you have made for the standard index also applies  to
        your extra indexes.
 
        Similar techniques can be applied for glossaries.
@@ -4129,31 +4195,31 @@
 
        Those of you with experience with Makefiles, may get concerned that the
        .ndx file is written during a run of latex/pdflatex and is always later
-       than the .nnd last read in.  Thus the .nnd appears  to  be  perpetually
-       out-of-date.   This  situation, of circular dependencies, is endemic to
+       than  the  .nnd  last read in.  Thus the .nnd appears to be perpetually
+       out-of-date.  This situation, of circular dependencies, is  endemic  to
        latex, and is one of the issues that latexmk is programmed to overcome.
-       It  examines the contents of the files (by use of a checksum), and only
+       It examines the contents of the files (by use of a checksum), and  only
        does a remake when the file contents have actually changed.
 
-       Of course if you choose to write random data to the .nnd (or  the  .aux
-       file,  etc) that changes on each new run, then you will have a problem.
-       For real experts: See the %hash_cal_ignore_pattern if you have to  deal
+       Of  course  if you choose to write random data to the .nnd (or the .aux
+       file, etc) that changes on each new run, then you will have a  problem.
+       For  real experts: See the %hash_cal_ignore_pattern if you have to deal
        with such problems.
 
 
    Old Method of Defining Custom Dependencies:
-       In  much  older versions of latexmk, the only method of defining custom
-       dependencies was to directly manipulate the table of  custom  dependen-
+       In much older versions of latexmk, the only method of  defining  custom
+       dependencies  was  to directly manipulate the table of custom dependen-
        cies.  This is contained in the @cus_dep_list array.  It is an array of
-       strings, and each string in the array has four items in it, each  sepa-
-       rated  by  a  space,  the  from-extension, the to-extension, the "must"
-       item, and the name of the subroutine for the custom dependency.   These
+       strings,  and each string in the array has four items in it, each sepa-
+       rated by a space, the  from-extension,  the  to-extension,  the  "must"
+       item,  and the name of the subroutine for the custom dependency.  These
        were all defined above.
 
 
 
 
-                                 18 June 2019                               63
+                               26 December 2019                             64
 
 
 
@@ -4163,7 +4229,7 @@
 
 
        An example of the old method of defining custom dependencies is as fol-
-       lows. It is the code in an RC file to ensure  automatic  conversion  of
+       lows.  It  is  the code in an RC file to ensure automatic conversion of
        .fig files to .eps files:
 
            push @cus_dep_list, "fig eps 0 fig2eps";
@@ -4171,21 +4237,21 @@
                return system( "fig2dev -Lps \"$_[0].fig\" \"$_[0].eps\"" );
            }
 
-       This  method  still  works,  and is almost equivalent to the code given
-       earlier that used the add_cus_dep subroutine.  However, the old  method
-       doesn't  delete any previous custom-dependency for the same conversion.
+       This method still works, and is almost equivalent  to  the  code  given
+       earlier  that used the add_cus_dep subroutine.  However, the old method
+       doesn't delete any previous custom-dependency for the same  conversion.
        So the new method is preferable.
 
 
 
 ADVANCED CONFIGURATION: Some extra resources and advanced tricks
-       For most purposes, simple configuration for latexmk along the lines  of
-       the  examples  given  is  sufficient.  But sometimes you need something
-       harder.  In this section, I indicate some extra possibilities.   Gener-
-       ally  to  use  these, you need to be fluent in the Perl language, since
+       For  most purposes, simple configuration for latexmk along the lines of
+       the examples given is sufficient.  But  sometimes  you  need  something
+       harder.   In this section, I indicate some extra possibilities.  Gener-
+       ally to use these, you need to be fluent in the  Perl  language,  since
        this is what is used in the rc files.
 
-       See also the section DEALING WITH ERRORS, PROBLEMS, ETC.  See also  the
+       See  also the section DEALING WITH ERRORS, PROBLEMS, ETC.  See also the
        examples in the directory example_rcfiles in the latexmk distributions.
        Even if none of the examples apply to your case, they may give you use-
        ful ideas
@@ -4194,13 +4260,13 @@
    Utility subroutines
        ensure_path( var, values ...)
 
-              The  first parameter is the name of one of the system's environ-
-              ment variables for search paths.  The remaining  parameters  are
-              values  that  should  be in the variable.  For each of the value
-              parameters, if it isn't already in  the  variable,  then  it  is
+              The first parameter is the name of one of the system's  environ-
+              ment  variables  for search paths.  The remaining parameters are
+              values that should be in the variable.  For each  of  the  value
+              parameters,  if  it  isn't  already  in the variable, then it is
               prepended to the variable; in that case the environment variable
-              is created if it doesn't already exist. For  separating  values,
-              the  character  appropriate  the the operating system is used --
+              is  created  if it doesn't already exist. For separating values,
+              the character appropriate the the operating system  is  used  --
               see the configuration variable $search_path_separator.
 
               Example:
@@ -4211,15 +4277,15 @@
               to mean that latex, pdflatex, etc search for files in the speci-
               fied directory and in all subdirectories.)
 
-              Technically  ensure_path  works  by  setting   Perl's   variable
-              $ENV{var},  where  var  is the name of the target variable.  The
-              changed value is then passed as an environment variable  to  any
+              Technically   ensure_path   works  by  setting  Perl's  variable
+              $ENV{var}, where var is the name of the  target  variable.   The
+              changed  value  is then passed as an environment variable to any
               invoked programs.
 
 
 
 
-                                 18 June 2019                               64
+                               26 December 2019                             65
 
 
 
@@ -4230,22 +4296,22 @@
 
    Variables and subroutines for processing a rule
        A step in the processing is called a rule. One possibility to implement
-       the processing of a rule is by a Perl subroutine.  This is  always  the
-       case  for  custom dependencies. Also, for any other rule, you can use a
-       subroutine by prefixing the command specification by the  word  "inter-
+       the  processing  of a rule is by a Perl subroutine.  This is always the
+       case for custom dependencies. Also, for any other rule, you can  use  a
+       subroutine  by  prefixing the command specification by the word "inter-
        nal" -- see the section FORMAT OF COMMAND SPECIFICATIONS.
 
-       When  you use a subroutine for processing a rule, all the possibilities
+       When you use a subroutine for processing a rule, all the  possibilities
        of Perl programming are available, of course.  In addition, some of la-
-       texmk's  internal  variables  and  subroutines are available.  The ones
-       listed below are intended to be  available  to  (advanced)  users,  and
+       texmk's internal variables and subroutines  are  available.   The  ones
+       listed  below  are  intended  to  be available to (advanced) users, and
        their specifications will generally have stability under upgrades. Gen-
-       erally, the variables should be treated as  read-only:  Changing  their
-       values  can  have  bad  consequences, since it is liable to mess up the
+       erally,  the  variables  should be treated as read-only: Changing their
+       values can have bad consequences, since it is liable  to  mess  up  the
        consistency of what latexmk is doing.
 
-       $rule  This variable has the name of the rule,  as  known  to  latexmk.
-              Note  that  the exact contents of this variable for a given rule
+       $rule  This  variable  has  the  name of the rule, as known to latexmk.
+              Note that the exact contents of this variable for a  given  rule
               may be dependent on the version of latexmk
 
        $$Psource
@@ -4253,31 +4319,31 @@
               dollar signs.
 
        $$Pdest
-              This  gives  the  name of the main output file if any.  Note the
+              This gives the name of the main output file if  any.   Note  the
               double dollar signs.
 
        rdb_ensure_file( $rule, file )
-              This a subroutine that ensures that the given file is among  the
+              This  a subroutine that ensures that the given file is among the
               source files for the specified rule.  It is typically used when,
-              during the processing of a rule, it is known that  a  particular
-              extra  file  is among the dependencies that latexmk should know,
+              during  the  processing of a rule, it is known that a particular
+              extra file is among the dependencies that latexmk  should  know,
               but its default methods don't find the dependency. Almost always
-              the  first argument is the name of the rule currently being pro-
+              the first argument is the name of the rule currently being  pro-
               cessed, so it is then appropriate to specify it by $rule.
 
-              For examples of its use, see some of the files in the  directory
-              example_rcfiles  of latexmk's distribution.  Currently the cases
-              that use this  subroutine  are  bib2gls-latexmkrc,  exceltex_la-
-              texmkrc  and  texinfo-latexmkrc.  These illustrate typical cases
-              where latexmk's normal processing fails to detect certain  extra
+              For  examples of its use, see some of the files in the directory
+              example_rcfiles of latexmk's distribution.  Currently the  cases
+              that  use  this  subroutine  are bib2gls-latexmkrc, exceltex_la-
+              texmkrc and texinfo-latexmkrc.  These illustrate  typical  cases
+              where  latexmk's normal processing fails to detect certain extra
               source files.
 
        rdb_remove_files( $rule, file, ... )
-              This  subroutine  removes  one or more files from the dependency
+              This subroutine removes one or more files  from  the  dependency
               list for the given rule.
 
        rdb_list_source( $rule )
-              This subroutine returns the list of source files (i.e., the  de-
+              This  subroutine returns the list of source files (i.e., the de-
               pendency list) for the given rule.
 
        rdb_set_source( $rule, file, ... )
@@ -4285,7 +4351,7 @@
 
 
 
-                                 18 June 2019                               65
+                               26 December 2019                             66
 
 
 
@@ -4295,9 +4361,9 @@
 
 
        rdb_set_source( $rule, @files )
-              This  subroutine  sets the dependency list for the given rule to
+              This subroutine sets the dependency list for the given  rule  to
               be the specified files.  Files that are already in the list have
-              unchanged  information.   Files  that  were  not in the list are
+              unchanged information.  Files that were  not  in  the  list  are
               added to it.  Files in the previous dependency list that are not
               in the newly specified list of files are removed from the depen-
               dency list.
@@ -4304,18 +4370,18 @@
 
        Run_subst( command_spec )
               This subroutine runs the command specified by command_spec.  The
-              specification  is  a  string in the format listed in the section
-              "Format of Command Specifications".  An important action of  the
+              specification is a string in the format listed  in  the  section
+              "Format  of Command Specifications".  An important action of the
               Run_subst is to make substitutions of placeholders, e.g., %S and
-              %D for source and destination files; these get  substituted  be-
+              %D  for  source and destination files; these get substituted be-
               fore the command is run.  In addition, the command after substi-
-              tution is printed to the screen unless  latexmk  is  running  in
+              tution  is  printed  to  the screen unless latexmk is running in
               silent mode.
 
 
    Coordinated Setting of Commands for *latex
-       To  set  all  of $latex, $pdflatex, $lualatex, and $xelatex to a common
-       pattern, you can use one of the  following  subroutines,  std_tex_cmds,
+       To set all of $latex, $pdflatex, $lualatex, and $xelatex  to  a  common
+       pattern,  you  can  use one of the following subroutines, std_tex_cmds,
        alt_tex_cmds, and set_tex_cmds.
 
        They work as follows
@@ -4322,20 +4388,20 @@
 
           &std_tex_cmds;
 
-       This  results  in  $latex = 'latex %O %S', and similarly for $pdflatex,
-       $lualatex, and $xelatex.  Note the ampersand in  the  invocation;  this
+       This results in $latex = 'latex %O %S', and  similarly  for  $pdflatex,
+       $lualatex,  and  $xelatex.   Note the ampersand in the invocation; this
        indicates to Perl that a subroutine is being called.
 
           &alt_tex_cmds;
 
-       This  results  in  $latex = 'latex %O %P', and similarly for $pdflatex,
-       $lualatex, and $xelatex.  Note the ampersand in  the  invocation;  this
+       This results in $latex = 'latex %O %P', and  similarly  for  $pdflatex,
+       $lualatex,  and  $xelatex.   Note the ampersand in the invocation; this
        indicates to Perl that a subroutine is being called.
 
          set_tex_cmds( CMD_SPEC );
 
-       Here  CMD_SPEC  is  the command line without the program name. This re-
-       sults in $latex = 'CMD_SPEC', and similarly for  $pdflatex,  $lualatex,
+       Here CMD_SPEC is the command line without the program  name.  This  re-
+       sults  in  $latex = 'CMD_SPEC', and similarly for $pdflatex, $lualatex,
        and $xelatex. An example would be
 
          set_tex_cmds( '--interaction=batchmode %O %S' );
@@ -4342,16 +4408,16 @@
 
 
    Advanced configuration: Using latexmk with make
-       This  section  is targeted only at advanced users who use the make pro-
+       This section is targeted only at advanced users who use the  make  pro-
        gram for complex projects, as for software development, with the depen-
        dencies specified by a Makefile.
 
-       Now  the  basic  task  of latexmk is to run the appropriate programs to
-       make a viewable version of a LaTeX document.  However, the  usual  make
+       Now the basic task of latexmk is to run  the  appropriate  programs  to
+       make  a  viewable version of a LaTeX document.  However, the usual make
 
 
 
-                                 18 June 2019                               66
+                               26 December 2019                             67
 
 
 
@@ -4360,32 +4426,32 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       program  is not suited to this purpose for at least two reasons.  First
+       program is not suited to this purpose for at least two reasons.   First
        is that the use of LaTeX involves circular dependencies (e.g., via .aux
        files), and these cannot be handled by the standard make program.  Sec-
-       ond is that in a large document the set  of  source  files  can  change
-       quite  frequently,  particularly  with included graphics files; in this
-       situation keeping a Makefile manually updated is inappropriate and  er-
+       ond  is  that  in  a  large document the set of source files can change
+       quite frequently, particularly with included graphics  files;  in  this
+       situation  keeping a Makefile manually updated is inappropriate and er-
        ror-prone, especially when the dependencies can be determined automati-
        cally.  Latexmk solves both of these problems robustly.
 
-       Thus for many standard LaTeX documents latexmk can be  used  by  itself
-       without  the  make program.  In a complex project it simply needs to be
-       suitably configured.  A standard configuration would be to define  cus-
-       tom  dependencies to make graphics files from their source files (e.g.,
-       as created by the xfig program).   Custom  dependencies  are  latexmk's
+       Thus  for  many  standard LaTeX documents latexmk can be used by itself
+       without the make program.  In a complex project it simply needs  to  be
+       suitably  configured.  A standard configuration would be to define cus-
+       tom dependencies to make graphics files from their source files  (e.g.,
+       as  created  by  the  xfig program).  Custom dependencies are latexmk's
        equivalent of pattern rules in Makefiles.
 
-       Nevertheless  there  are  projects for which a Makefile is appropriate,
+       Nevertheless there are projects for which a  Makefile  is  appropriate,
        and it is useful to know how to use latexmk from a Makefile.  A typical
        example would be to generate documentation for a software project.  Po-
-       tentially the interaction with the rest of the rules  in  the  Makefile
+       tentially  the  interaction  with the rest of the rules in the Makefile
        could be quite complicated, for example if some of the source files for
        a LaTeX document are generated by the project's software.
 
        In this section, I give a couple of examples of how latexmk can be use-
-       fully  invoked  from a Makefile.  The examples use specific features of
-       current versions of GNU make, which is the default on  both  linux  and
+       fully invoked from a Makefile.  The examples use specific  features  of
+       current  versions  of  GNU make, which is the default on both linux and
        OS-X systems.  They may need modifications for other versions of make.
 
        The simplest method is simply to delegate all the relevant tasks to la-
@@ -4397,27 +4463,27 @@
            %.pdf : %.tex FORCE_MAKE
                latexmk -pdf -dvi- -ps- $<
 
-       (Note:  the  last  line must be introduced by a tab for the Makefile to
-       function correctly!)  Naturally, if making try.pdf from its  associated
-       LaTeX  file try.tex were the only task to be performed, a direct use of
-       latexmk without a Makefile would normally be better.   The  benefit  of
-       using  a  Makefile  for  a LaTeX document would be in a larger project,
+       (Note: the last line must be introduced by a tab for  the  Makefile  to
+       function  correctly!)  Naturally, if making try.pdf from its associated
+       LaTeX file try.tex were the only task to be performed, a direct use  of
+       latexmk  without  a  Makefile would normally be better.  The benefit of
+       using a Makefile for a LaTeX document would be  in  a  larger  project,
        where lines such as the above would be only be a small part of a larger
        Makefile.
 
        The above example has a pattern rule for making a .pdf file from a .tex
-       file, and it is defined to use latexmk in the obvious way.  There is  a
+       file,  and it is defined to use latexmk in the obvious way.  There is a
        conventional  default  target  named  "all",  with  a  prerequisite  of
-       try.pdf.  So when make is invoked, by default it  makes  try.pdf.   The
-       only  complication  is  that  there  may  be  many  source files beyond
+       try.pdf.   So  when  make is invoked, by default it makes try.pdf.  The
+       only complication is  that  there  may  be  many  source  files  beyond
        try.tex, but these aren't specified in the Makefile, so changes in them
-       will  not by themselves cause latexmk to be invoked.  Instead, the pat-
-       tern rule is equipped with a "phony" prerequisite FORCE_MAKE; this  has
-       the  effect  of  causing  the  rule  to  be always out-of-date, so that
+       will not by themselves cause latexmk to be invoked.  Instead, the  pat-
+       tern  rule is equipped with a "phony" prerequisite FORCE_MAKE; this has
+       the effect of causing the  rule  to  be  always  out-of-date,  so  that
 
 
 
-                                 18 June 2019                               67
+                               26 December 2019                             68
 
 
 
@@ -4426,16 +4492,16 @@
 LATEXMK(1)                  General Commands Manual                 LATEXMK(1)
 
 
-       latexmk is always run.  It is latexmk that decides whether  any  action
-       is  needed,  e.g., a rerun of pdflatex.  Effectively the Makefile dele-
+       latexmk  is  always run.  It is latexmk that decides whether any action
+       is needed, e.g., a rerun of pdflatex.  Effectively the  Makefile  dele-
        gates all decisions to latexmk, while make has no knowledge of the list
-       of  source  files  except for primary LaTeX file for the  document.  If
-       there are, for example, graphics files to be made, these must  be  made
+       of source files except for primary LaTeX file for  the   document.   If
+       there  are,  for example, graphics files to be made, these must be made
        by custom dependencies configured in latexmk.
 
-       But  something better is needed in more complicated situations, for ex-
+       But something better is needed in more complicated situations, for  ex-
        ample, when the making of graphics files needs to be specified by rules
-       in  the  Makefile.  To do this, one can use a Makefile like the follow-
+       in the Makefile.  To do this, one can use a Makefile like  the  follow-
        ing:
 
             TARGETS = document1.pdf document2.pdf
@@ -4454,36 +4520,36 @@
             %.pdf : %.fig
                    fig2dev -Lpdf $< $@
 
-       (Again, the lines containing the  commands  for  the  rules  should  be
+       (Again,  the  lines  containing  the  commands  for the rules should be
        started with tabs.)  This example was inspired by how GNU automake han-
        dles automatic dependency tracking of C source files.
 
-       After each run of latexmk, dependency information is put in a  file  in
-       the  .deps subdirectory.  The Makefile causes these dependency files to
+       After  each  run of latexmk, dependency information is put in a file in
+       the .deps subdirectory.  The Makefile causes these dependency files  to
        be read by make, which now has the full dependency information for each
-       target  .pdf  file.   To make things less trivial it is specificed that
-       two files document1.pdf and document2.pdf are the targets.  The  depen-
+       target .pdf file.  To make things less trivial it  is  specificed  that
+       two  files document1.pdf and document2.pdf are the targets.  The depen-
        dency files are .deps/document1.pdfP and .deps/document2.pdfP.
 
-       There  is  now  no need for the phony prerequisite for the rule to make
+       There is now no need for the phony prerequisite for the  rule  to  make
        .pdf files from .tex files.  But I have added a rule to make .pdf files
-       from  .fig  files produced by the xfig program; these are commonly used
-       for graphics insertions in LaTeX documents.   Latexmk  is  arranged  to
+       from .fig files produced by the xfig program; these are  commonly  used
+       for  graphics  insertions  in  LaTeX documents.  Latexmk is arranged to
        output a dependency file after each run.  It is given the -recorder op-
-       tion, which improves its detection of files generated during a  run  of
-       pdflatex;  such files should not be in the dependency list.  The -e op-
-       tions are used to turn off all custom  dependencies,  and  to  document
-       this.   Instead the -use-make is used to delegate the making of missing
+       tion,  which  improves its detection of files generated during a run of
+       pdflatex; such files should not be in the dependency list.  The -e  op-
+       tions  are  used  to  turn off all custom dependencies, and to document
+       this.  Instead the -use-make is used to delegate the making of  missing
        files to make itself.
 
-       Suppose in the LaTeX file there is a  command  \includegraphics{graph},
-       and  an xfig file "graph.fig" exists.  On a first run, pdflatex reports
-       a missing file, named "graph". Latexmk succeeds in  making  "graph.pdf"
+       Suppose  in  the LaTeX file there is a command \includegraphics{graph},
+       and an xfig file "graph.fig" exists.  On a first run, pdflatex  reports
+       a  missing  file, named "graph". Latexmk succeeds in making "graph.pdf"
        by calling "make graph.pdf", and after completion of its work, it lists
 
 
 
-                                 18 June 2019                               68
+                               26 December 2019                             69
 
 
 
@@ -4493,10 +4559,10 @@
 
 
        "fig.pdf" among the dependents of the file latexmk is making.  Then let
-       "fig.fig"  be  updated,  and  then let make be run.  Make first remakes
+       "fig.fig" be updated, and then let make be  run.   Make  first  remakes
        "fig.pdf", and only then reruns latexmk.
 
-       Thus we now have a method by which all  the  subsidiary  processing  is
+       Thus  we  now  have  a method by which all the subsidiary processing is
        delegated to make.
 
 
@@ -4505,35 +4571,35 @@
 
 BUGS
        Sometimes a viewer (gv) tries to read an updated .ps or .pdf file after
-       its creation is started but before the file is complete.  Work  around:
+       its  creation is started but before the file is complete.  Work around:
        manually refresh (or reopen) display.  Or use one of the other preview-
        ers and update methods.
 
-       (The following isn't really a bug, but concerns  features  of  preview-
-       ers.)   Preview  continuous mode only works perfectly with certain pre-
-       viewers: Xdvi on UNIX/Linux works for  dvi  files.   Gv  on  UNIX/Linux
-       works  for  both  postscript  and pdf.  Ghostview on UNIX/Linux needs a
-       manual update (reopen); it views postscript and pdf.  Gsview under  MS-
-       Windows  works  for both postscript and pdf, but only reads the updated
-       file when its screen is refreshed.   Acroread  under  UNIX/Linux  views
-       pdf,  but  the  file needs to be closed and reopened to view an updated
-       version.  Under MS-Windows, acroread locks its input file  and  so  the
-       pdf  file  cannot  be updated.  (Remedy: configure latexmk to use suma-
+       (The  following  isn't  really a bug, but concerns features of preview-
+       ers.)  Preview continuous mode only works perfectly with  certain  pre-
+       viewers:  Xdvi  on  UNIX/Linux  works  for dvi files.  Gv on UNIX/Linux
+       works for both postscript and pdf.  Ghostview  on  UNIX/Linux  needs  a
+       manual  update (reopen); it views postscript and pdf.  Gsview under MS-
+       Windows works for both postscript and pdf, but only reads  the  updated
+       file  when  its  screen  is refreshed.  Acroread under UNIX/Linux views
+       pdf, but the file needs to be closed and reopened to  view  an  updated
+       version.   Under  MS-Windows,  acroread locks its input file and so the
+       pdf file cannot be updated.  (Remedy: configure latexmk  to  use  suma-
        trapdf instead.)
 
 THANKS TO
-       Authors of previous versions.  Many users with their feedback, and  es-
+       Authors  of previous versions.  Many users with their feedback, and es-
        pecially David Coppit (username david at node coppit.org) who made many
-       useful suggestions that contributed to version 3, and  Herbert  Schulz.
-       (Please  note  that the e-mail addresses are not written in their stan-
+       useful  suggestions  that contributed to version 3, and Herbert Schulz.
+       (Please note that the e-mail addresses are not written in  their  stan-
        dard form to avoid being harvested too easily.)
 
 AUTHOR
-       Current version, by John  Collins  (username  jcc8  at  node  psu.edu).
-       (Version 4.65).
+       Current  version,  by  John  Collins  (username  jcc8 at node psu.edu).
+       (Version 4.67).
 
-       Released      version      can      be      obtained     from     CTAN:
-       <http://www.ctan.org/pkg/latexmk/>,  and  from  the  author's   website
+       Released     version     can      be      obtained      from      CTAN:
+       <http://www.ctan.org/pkg/latexmk/>,   and  from  the  author's  website
        <http://www.personal.psu.edu/jcc8/latexmk/>.
        Modifications and enhancements by Evan McLean (Version 2.0)
        Original script called "go" by David J. Musliner (RCS Version 3.2)
@@ -4549,7 +4615,7 @@
 
 
 
-                                 18 June 2019                               69
+                               26 December 2019                             70
 
 
 
@@ -4615,6 +4681,6 @@
 
 
 
-                                 18 June 2019                               70
+                               26 December 2019                             71
 
 

Modified: trunk/Master/texmf-dist/scripts/latexmk/latexmk.pl
===================================================================
--- trunk/Master/texmf-dist/scripts/latexmk/latexmk.pl	2020-01-01 21:51:17 UTC (rev 53292)
+++ trunk/Master/texmf-dist/scripts/latexmk/latexmk.pl	2020-01-01 21:52:34 UTC (rev 53293)
@@ -162,6 +162,27 @@
 ##
 ## 12 Jan 2012 STILL NEED TO DOCUMENT some items below
 ##
+## 26 Dec 2019 John Collins  Change place of setting of $view_file
+##                           Make fully consistent set of options for engines:
+##                               -latex, -latex=...,
+##                           preserving backward compatibility, and avoiding suprises. 
+## 11 Dec 2019 John Collins  Change rules for wrapping in log file: This deals
+##                             with xelatex wrapping at > standard number of
+##                             bytes in presence of non-ASCII Unicode characters.
+##  4 Dec 2019 John Collins  If there were missing subdirectories in output/aux
+##                           directories, and these were successfully created,
+##                           then ignore error from *latex, since rerun may
+##                           succeed.
+## 14 Nov 2019 John Collins  Add comment.
+## 12 Nov 2019 John Collins  Use $compiling_cmd, $warning_cmd, $success_cmd
+#                            on normal make, rather than just in -pvc mode.
+##  5 Aug 2019 John Collins  The changing of '\' to '/' in filenames is now
+##                             done for msys as well as MSWin32.
+##  8 Jul 2019 John Collins  Allow addition of hook for processing lists of
+##                             missing source files, used after run of *latex.
+##  2 Jul 2019 John Collins  Silence message about disallowing change of output
+##                            file type.
+##                           V. 4.66
 ## 28 Jun 2019 John Collins  Try to deal with log file parsing problems
 ##                           V. 4.65
 ## 21 May 2019 John Collins  Fix incorrect listings by -rules and by -deps
@@ -233,8 +254,8 @@
 
 $my_name = 'latexmk';
 $My_name = 'Latexmk';
-$version_num = '4.65';
-$version_details = "$My_name, John Collins, 18 June 2019";
+$version_num = '4.67';
+$version_details = "$My_name, John Collins, 26 Dec. 2019";
 
 use Config;
 use File::Basename;
@@ -359,7 +380,7 @@
 
 
 # Hooks for customized extra processing on aux files.  The following
-# variable is an array of references to function.  Each function is
+# variable is an array of references to functions.  Each function is
 # invoked in turn when a line of an aux file is processed (if none
 # of the built-in actions have been done).  On entry to the function,
 # the following variables are set:
@@ -367,6 +388,15 @@
 #    $rule = name of rule during the invocation of which, the aux file
 #            was supposed to have been generated.
 @aux_hooks = ();
+# Hooks for customized processing on lists of source and missing files.
+# The following variable is an array of references to functions.  Each 
+# function is invoked in turn after a run of latex (or pdflatex etc) and
+# latexmk has analyzed the .log and .fls files for dependency information.
+# On entry to each called function, the following variables are set:
+#    $rule = name of *latex rule
+#    %dependents: maps source files and possible source files to a status.
+#                 See begining of sub parse_log for possible values.
+ at latex_file_hooks = ();
 
 #########################################################################
 ## Default document processing programs, and related settings,
@@ -1739,6 +1769,11 @@
   }
   elsif (/^-l$/)     { $landscape_mode = 1; }
   elsif (/^-l-$/)    { $landscape_mode = 0; }
+  elsif ( /^-latex$/ )      { 
+      $pdf_mode = 0;
+      $postscript_mode = 0; 
+      $dvi_mode = 1;
+  }
   elsif (/^-latex=(.*)$/) {
       $latex = $1;
   }
@@ -1752,6 +1787,11 @@
       { $silence_logfile_warnings = 0; }
   elsif ( /^-logfilewarninglist-$/ || /^-logfilewarnings-$/ )
       { $silence_logfile_warnings = 1; }
+  elsif ( /^-lualatex$/ || /^-pdflualatex$/ )      { 
+      $pdf_mode = 4;
+      $dvi_mode = $postscript_mode = 0; 
+  }
+# See below for -lualatex=...
 # See above for -M
   elsif (/^-MF$/) {
      if ( $ARGV[0] eq '' ) {
@@ -1785,18 +1825,18 @@
   elsif (/^-pdflua$/){ $pdf_mode = 4; }
   elsif (/^-pdfps$/) { $pdf_mode = 2; }
   elsif (/^-pdfxe$/) { $pdf_mode = 5; }
-#  elsif (/^-pdflatex$/) {
-#      $pdflatex = "pdflatex %O %S";
-#      $pdf_mode = 1;
-#      $dvi_mode = $postscript_mode = 0; 
-#  }
+  elsif (/^-pdflatex$/) {
+      $pdflatex = "pdflatex %O %S";
+      $pdf_mode = 1;
+      $dvi_mode = $postscript_mode = 0; 
+  }
   elsif (/^-pdflatex=(.*)$/) {
       $pdflatex = $1;
   }
-  elsif (/^-pdflualatex=(.*)$/) {
+  elsif ( /^-pdflualatex=(.*)$/ || /^-lualatex=(.*)$/ ) {
       $lualatex = $1;
   }
-  elsif (/^-pdfxelatex=(.*)$/) {
+  elsif ( /^-pdfxelatex=(.*)$/ || /^-xelatex=(.*)$/ ) {
       $xelatex = $1;
   }
   elsif (/^-pretex=(.*)$/) {
@@ -1873,14 +1913,11 @@
   elsif (/^-view=ps$/)      { $view = "ps";}
   elsif (/^-view=pdf$/)     { $view = "pdf"; }
   elsif (/^-Werror$/){ $warnings_as_errors = 1; }
-  elsif (/^-lualatex$/)      { 
-      $pdf_mode = 4;
-      $dvi_mode = $postscript_mode = 0; 
-  }
-  elsif (/^-xelatex$/)      { 
+  elsif ( /^-xelatex$/ || /^-pdfxelatex$/ )      { 
       $pdf_mode = 5;
       $dvi_mode = $postscript_mode = 0; 
   }
+# See above for -xelatex=...
   elsif (/^-e$/) {  
      if ( $#ARGV < 0 ) {
         &exit_help( "No code to execute specified after -e switch"); 
@@ -2267,8 +2304,10 @@
     # the only destinations.  So if ps or dvi files needed, we cannot
     # allow switching.  (There will then be an error condition if a TeX
     # engine fails to produce the correct type of output file.)
-    warn "$My_name: Disallowing switch of output file as incompatible\n",
-         "    with file requests.\n";
+    if ($diagnostics) {
+        warn "$My_name: Disallowing switch of output file as incompatible\n",
+             "    with file requests.\n";
+    }
     $can_switch = 0;
 }
 
@@ -2417,7 +2456,9 @@
     #      but %rule_db is needed in the continue block, which is not in the
     #      scope of a local declaration here.
     &rdb_initialize_rules;
-    
+    $view_file = '';
+    rdb_one_rule( 'view', sub{ $view_file = $$Psource; } );
+
     if ( $cleanup_mode > 0 ) {
 # ?? MAY NEED TO FIX THE FOLLOWING IF $aux_dir or $out_dir IS SET.
         my %other_generated = ();
@@ -2645,6 +2686,7 @@
     #Initialize failure flags now.
     $failure = 0;
     $failure_msg = '';
+    if ($compiling_cmd) { Run_subst( $compiling_cmd ); }
     $failure = &rdb_make;
     if ( ( $failure <= 0 ) || $force_mode ) {
       rdb_for_some( [keys %one_time], \&rdb_run1 );
@@ -2656,7 +2698,13 @@
             $failure_msg = "Warning(s) from latex (or c.) for '$filename'; treated as error";
         }
     }
-    if ($failure > 0) { next FILE; }
+    
+    if ($failure > 0) {
+        if ($failure_cmd) { Run_subst( $failure_cmd ); }
+        next FILE;
+    } else {
+        if ($success_cmd) { Run_subst( $success_cmd ); }
+    }
 } # end FILE
 continue {
     if ($deps_handle) { deps_list($deps_handle); }
@@ -2755,7 +2803,7 @@
     my $unbalanced_quote = 0;
     my $balanced_quote = 0;
     foreach (@_) {
-        if ( $^O eq "MSWin32" ) {
+        if ( ($^O eq "MSWin32") || ($^O eq "msys") ) {
             # On MS-Win, change directory separator '\' to '/', as needed
             # by the TeX engines, for which '\' introduces a macro name.
             # Remember that '/' is a valid directory separator in MS-Win.
@@ -3461,9 +3509,6 @@
     
     $quell_uptodate_msgs = 1;
 
-    local $view_file = '';
-    rdb_one_rule( 'view', sub{ $view_file = $$Psource; } );
-  
     if ( ($view eq 'dvi') || ($view eq 'pdf') || ($view eq 'ps') ) { 
         warn "Viewing $view\n";
     }
@@ -3528,8 +3573,6 @@
         }
         $failure = &rdb_make;
 
-##     warn "=========Viewer PID = $$Pviewer_process; updated=$updated\n";
-
         if ( $MSWin_fudge_break && ($^O eq "MSWin32") ) {
             $SIG{BREAK} = $SIG{INT} = 'DEFAULT';
         }
@@ -4538,8 +4581,12 @@
             }
         }
         else {
-            # LuaTeX sometimes wraps at 80 instead of 79, so work around this
-            while ( ( ($len == $log_wrap) || ( ($engine eq 'LuaTeX') && ($len == $log_wrap+1) ) )
+            # Xetex and luatex sometimes wrap at longer line lengths:
+            # LuaTeX sometimes at 80. Xetex 80 or longer with non-ascii characters.
+            while ( ( ($len == $log_wrap)
+                      || ( ($engine eq 'LuaTeX') && ($len == $log_wrap+1) )
+                      || ( ($engine eq 'XeTeX') &&  ($len >= $log_wrap+1) )
+                    )
                     && !eof($log_file) ) {
                 push @lines, $_;
                 my $extra = <$log_file>;
@@ -5893,9 +5940,10 @@
                     warn "  ===== CHANGING output type from '$newext' to '$oldext' in '$rule'\n";
                     my $switch_error =  switch_output( $oldext, $newext );
                     if ($switch_error) {
-                        warn "   I could not accommodate the changed output extension\n",
-                             "   (either because the configuration does not allow it\n",
-                             "   or because there is a conflict with requested filetypes).\n",
+                        warn "   I could not accommodate the changed output extension.\n",
+                             "   That is either because the configuration does not allow it\n",
+                             "   or because there is a conflict with implicit or explicit requested filetypes.\n",
+                             "   (Typically that is about .dvi and/or .ps filetypes.)\n",
                              "===> There may be subsequent warnings, which may or may not be ignorable.\n",
                              "===> If necessary, clean out generated files and try again\n";
                     }
@@ -6124,7 +6172,7 @@
     }
  
     &parse_log;
-    $missing_dirs = 'none';      # Status of missing directories
+    my $missing_dirs = 'none';      # Status of missing directories
     if (@missing_subdirs) {
         $missing_dirs = 'success';
         if ($allow_subdir_creation) {
@@ -6424,6 +6472,10 @@
         }
     }
 
+    foreach my $Psub (@latex_file_hooks) {
+         &$Psub;
+    }
+
     # Some packages (e.g., bibtopic) generate a dummy error-message-providing
     #   bbl file when a bbl file does not exist.  Then the fls and log files
     #   show the bbl file as created by the primary run and hence as a
@@ -6470,6 +6522,8 @@
     }
     rdb_remove_files( $rule, @files_not_needed );
 
+    return ($missing_dirs, [@missing_subdirs] );
+
 } # END rdb_set_latex_deps
 
 #************************************************************
@@ -7949,7 +8003,7 @@
     }
 
     # Find current set of source files:
-    &rdb_set_latex_deps;
+    my ($missing_dirs, $PA_missing_subdirs) = &rdb_set_latex_deps;
 
     # For each file of the kind made by epstopdf.sty during a run, 
     #   if the file has changed during a run, then the new version of
@@ -7981,6 +8035,12 @@
           if (! $silent);
        $return = 0;
     }
+    if ($return_latex && ($missing_dirs ne 'none') ) {
+       print "Error in (pdf)LaTeX, but needed subdirectories in output directory\n",
+             "   were missing and successfully created, so try again.\n"
+          if (! $silent);
+       $return = 0;
+    }
     # Summarize issues that may have escaped notice:
     @primary_warning_summary = ();
     if ($bad_reference) {
@@ -9363,6 +9423,22 @@
 
 ####################################################
 
+sub add_latex_file_hook {
+    # Usage: add_latex_file_hook( sub_name )
+    # Add the name subroutine to the array of hooks for
+    # processing list of possible dependency files after a run of *latex.
+    # The argument is either a string naming the subroutine, e.g.
+    #     add_latex_file_hook( 'subname' );
+    # or a Perl reference to the subroutine, e.g.,
+    #     add_latex_file_hook( \&subname );
+    # It is also possible to use an anonymous subroutine, e.g.,
+    #     add_latex_file_hook( sub{  code of subroutine... } );
+    my ($sub_name) = @_;
+    push @latex_file_hooks, $sub_name;
+}
+
+####################################################
+
 sub set_input_ext {
     # Usage: set_input_ext( rule, ext, ... )
     # Set list of extension(s) (specified without a leading period) 



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