[tldistro] libxpdf vs poppler

Patrice Dumas pertusus at free.fr
Wed Apr 16 09:39:01 CEST 2008


On Mon, Apr 14, 2008 at 11:57:59PM +0200, Alexis Ballier wrote:
> Hi,
> 
> I've seen some other distros patching texlive to use poppler. I can
> easily see the pros (code sharing, less security issues, etc.) but also
> see some cons: api changes in poppler, differing from what the texlive
> team has been working with, possible subtle differences between the
> two...

We use also libpoppler in fedora. I attach the patch. It is not the
cleanest patch ever for the part relating with building against an
external poppler, but it works.

> problems than it may cause ? Do different poppler releases require
> code/patches adjustments ?

It is a bit young in fedora, but unless I am wrong there was a recent
libpoppler ABI incompatible change, but it didn't required to change
the texlive patch.

--
Pat
-------------- next part --------------
diff -up texlive-2007/texk/web2c/pdftexdir/pdftex.mk.poppler texlive-2007/texk/web2c/pdftexdir/pdftex.mk
--- texlive-2007/texk/web2c/pdftexdir/pdftex.mk.poppler	2006-12-27 00:37:34.000000000 +0100
+++ texlive-2007/texk/web2c/pdftexdir/pdftex.mk	2007-11-28 11:53:15.000000000 +0100
@@ -2,6 +2,9 @@
 # This fragment contains the parts of the makefile that are most likely to
 # differ between releases of pdfeTeX.
 
+# use libpoppler instead of included xpdf code
+ADDLDFLAGS = -lpoppler
+
 # We build pdftex
 pdftex = @PETEX@ pdftex
 pdftexdir = pdftexdir
@@ -29,7 +32,7 @@ pdftex_o = pdftexini.o pdftex0.o pdftex1
 
 # Making pdftex
 pdftex: pdftexd.h $(pdftex_o) $(pdftexextra_o) $(pdftexlibsdep)
-	@CXXHACKLINK@ $(pdftex_o) $(pdftexextra_o) $(pdftexlibs) $(socketlibs) @CXXHACKLDLIBS@ @CXXLDEXTRA@
+	@CXXHACKLINK@ $(pdftex_o) $(pdftexextra_o) $(pdftexlibs) $(socketlibs) @CXXHACKLDLIBS@ @CXXLDEXTRA@ $(ADDLDFLAGS)
 
 # C file dependencies.
 $(pdftex_c) pdftexcoerce.h pdftexd.h: pdftex.p $(web2c_texmf) $(srcdir)/$(pdftexdir)/pdftex.defines $(srcdir)/$(pdftexdir)/pdftex.h
@@ -156,7 +159,7 @@ ttf2afm-clean:
 pdftosrc = pdftosrc
 
 pdftosrc: $(pdftexdir)/pdftosrc.o $(LIBXPDFDEP)
-	@CXXHACKLINK@ $(pdftexdir)/pdftosrc.o $(LDLIBXPDF) -lm @CXXLDEXTRA@
+	@CXXHACKLINK@ $(pdftexdir)/pdftosrc.o $(LDLIBXPDF) -lm @CXXLDEXTRA@  $(ADDLDFLAGS)
 $(pdftexdir)/pdftosrc.o:$(srcdir)/$(pdftexdir)/pdftosrc.cc
 	cd $(pdftexdir) && $(MAKE) pdftosrc.o
 check: pdftosrc-check
diff -up texlive-2007/texk/web2c/pdftexdir/pdftoepdf.cc.poppler texlive-2007/texk/web2c/pdftexdir/pdftoepdf.cc
--- texlive-2007/texk/web2c/pdftexdir/pdftoepdf.cc.poppler	2006-12-27 00:37:34.000000000 +0100
+++ texlive-2007/texk/web2c/pdftexdir/pdftoepdf.cc	2007-11-28 11:53:15.000000000 +0100
@@ -26,25 +26,24 @@ $Id: pdftoepdf.cc,v 1.9 2006/09/01 18:06
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
-#include <aconf.h>
-#include <GString.h>
-#include <gmem.h>
-#include <gfile.h>
-#include <config.h>
 #include <assert.h>
-#include "Object.h"
-#include "Stream.h"
-#include "Array.h"
-#include "Dict.h"
-#include "XRef.h"
-#include "Catalog.h"
-#include "Link.h"
-#include "Page.h"
-#include "GfxFont.h"
-#include "PDFDoc.h"
-#include "GlobalParams.h"
-#include "Error.h"
-
+#include <dirent.h>
+#include <poppler/poppler-config.h>
+#include <poppler/goo/GooString.h>
+#include <poppler/goo/gmem.h>
+#include <poppler/goo/gfile.h>
+#include "poppler/Object.h"
+#include "poppler/Stream.h"
+#include "poppler/Array.h"
+#include "poppler/Dict.h"
+#include "poppler/XRef.h"
+#include "poppler/Link.h"
+#include "poppler/Catalog.h"
+#include "poppler/Page.h"
+#include "poppler/GfxFont.h"
+#include "poppler/PDFDoc.h"
+#include "poppler/GlobalParams.h"
+#include "poppler/Error.h"
 #include "epdf.h"
 
 // This file is mostly C and not very much C++; it's just used to interface
@@ -169,7 +168,7 @@ static PdfDocument *find_add_document(ch
     fprintf(stderr, "\npdfTeX Debug: Creating %s (%d)\n", p->file_name,
             p->occurences);
 #endif
-    GString *docName = new GString(p->file_name);
+    GooString *docName = new GooString(p->file_name);
     p->doc = new PDFDoc(docName);       // takes ownership of docName
     if (!p->doc->isOk() || !p->doc->okToPrint()) {
         pdftex_fail("xpdf: reading PDF image failed");
@@ -511,7 +510,7 @@ static void copyObject(Object * obj)
     int i, l, c;
     Ref ref;
     char *p;
-    GString *s;
+    GooString *s;
     if (obj->isBool()) {
         pdf_printf("%s", obj->getBool()? "true" : "false");
     } else if (obj->isInt()) {
@@ -703,7 +702,7 @@ read_pdf_info(char *image_name, char *pa
     epdf_num_pages = pdf_doc->doc->getCatalog()->getNumPages();
     if (page_name) {
         // get page by name
-        GString name(page_name);
+        GooString name(page_name);
         LinkDest *link = pdf_doc->doc->findDest(&name);
         if (link == 0 || !link->isOk())
             pdftex_fail("PDF inclusion: invalid destination <%s>", page_name);
diff -up texlive-2007/texk/web2c/pdftexdir/pdftexextra.in.poppler texlive-2007/texk/web2c/pdftexdir/pdftexextra.in
--- texlive-2007/texk/web2c/pdftexdir/pdftexextra.in.poppler	2006-12-27 00:37:34.000000000 +0100
+++ texlive-2007/texk/web2c/pdftexdir/pdftexextra.in	2007-11-28 11:53:15.000000000 +0100
@@ -26,7 +26,7 @@ $Id: pdftexextra.in,v 1.4 2004/08/26 18:
    (generated from ../lib/texmfmp.c).
 */
 
-#define BANNER "This is pdfTeX, Version 3.141592-PDFTEX-VERSION-ETEX-VERSION"
+#define BANNER "This is pdfTeX using libpoppler, Version 3.141592-PDFTEX-VERSION-ETEX-VERSION"
 #define COPYRIGHT_HOLDER "Peter Breitenlohner (eTeX)/Han The Thanh (pdfTeX)"
 #define AUTHOR NULL
 #define PROGRAM_HELP PDFTEXHELP
diff -up texlive-2007/texk/web2c/pdftexdir/pdftosrc.cc.poppler texlive-2007/texk/web2c/pdftexdir/pdftosrc.cc
--- texlive-2007/texk/web2c/pdftexdir/pdftosrc.cc.poppler	2006-12-27 00:37:34.000000000 +0100
+++ texlive-2007/texk/web2c/pdftexdir/pdftosrc.cc	2007-11-28 12:03:48.000000000 +0100
@@ -25,22 +25,23 @@ $Id: //depot/Build/source.development/Te
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
-#include <aconf.h>
 #include <assert.h>
-#include <GString.h>
-#include <gmem.h>
-#include <gfile.h>
-#include "Object.h"
-#include "Stream.h"
-#include "Array.h"
-#include "Dict.h"
-#include "XRef.h"
-#include "Catalog.h"
-#include "Page.h"
-#include "GfxFont.h"
-#include "PDFDoc.h"
-#include "GlobalParams.h"
-#include "Error.h"
+
+#include <dirent.h>
+#include <poppler/goo/GooString.h>
+#include <poppler/goo/gmem.h>
+#include <poppler/goo/gfile.h>
+#include <poppler/Object.h>
+#include <poppler/Stream.h>
+#include <poppler/Array.h>
+#include <poppler/Dict.h>
+#include <poppler/XRef.h>
+#include <poppler/Catalog.h>
+#include <poppler/Page.h>
+#include <poppler/GfxFont.h>
+#include <poppler/PDFDoc.h>
+#include <poppler/GlobalParams.h>
+#include <poppler/Error.h>
 
 static XRef *xref = 0;
 
@@ -48,7 +49,7 @@ int main(int argc, char *argv[])
 {
     char *p, buf[1024];
     PDFDoc *doc;
-    GString *fileName;
+    GooString *fileName;
     Stream *s;
     Object srcStream, srcName, catalogDict;
     FILE *outfile;
@@ -62,7 +63,7 @@ int main(int argc, char *argv[])
                 "Usage: pdftosrc <PDF-file> [<stream-object-number>]\n");
         exit(1);
     }
-    fileName = new GString(argv[1]);
+    fileName = new GooString(argv[1]);
     globalParams = new GlobalParams();
     doc = new PDFDoc(fileName);
     if (!doc->isOk()) {
diff -up texlive-2007/texk/web2c/pdftexdir/utils.c.poppler texlive-2007/texk/web2c/pdftexdir/utils.c
--- texlive-2007/texk/web2c/pdftexdir/utils.c.poppler	2007-01-01 18:20:03.000000000 +0100
+++ texlive-2007/texk/web2c/pdftexdir/utils.c	2007-11-28 11:53:15.000000000 +0100
@@ -37,7 +39,7 @@ $Id: //depot/Build/source.development/Te
 #include "zlib.h"
 #include "ptexlib.h"
 #include "png.h"
-#include "xpdf/config.h"        /* just to get the xpdf version */
+#include "poppler/poppler-config.h"        /* just to get the xpdf version */
 
 #define check_nprintf(size_get, size_want) \
     if ((unsigned)(size_get) >= (unsigned)(size_want)) \
@@ -1261,7 +1263,7 @@ void initversionstring(char **versions)
     (void) asprintf(versions,
                     "Compiled with libpng %s; using libpng %s\n"
                     "Compiled with zlib %s; using zlib %s\n"
-                    "Compiled with xpdf version %s\n",
+                    "Compiled with libpoppler version %s\n",
                     PNG_LIBPNG_VER_STRING, png_libpng_ver,
                     ZLIB_VERSION, zlib_version, xpdfVersion);
 }
diff -up texlive-2007/texk/web2c/xetexdir/pdfimage.cpp.poppler texlive-2007/texk/web2c/xetexdir/pdfimage.cpp
--- texlive-2007/texk/web2c/xetexdir/pdfimage.cpp.poppler	2006-12-09 11:29:12.000000000 +0100
+++ texlive-2007/texk/web2c/xetexdir/pdfimage.cpp	2007-11-28 11:53:15.000000000 +0100
@@ -11,10 +11,24 @@
 
 #include "pdfimage.h"
 
-#include "PDFDoc.h"
-#include "Catalog.h"
-#include "Page.h"
-#include "GString.h"
+#include <dirent.h>
+#include <poppler/poppler-config.h>
+#include <poppler/goo/GooString.h>
+#include <poppler/goo/gmem.h>
+#include <poppler/goo/gfile.h>
+#include "poppler/Object.h"
+#include "poppler/Stream.h"
+#include "poppler/Array.h"
+#include "poppler/Dict.h"
+#include "poppler/XRef.h"
+#include "poppler/Link.h"
+#include "poppler/Catalog.h"
+#include "poppler/Page.h"
+#include "poppler/GfxFont.h"
+#include "poppler/PDFDoc.h"
+#include "poppler/GlobalParams.h"
+#include "poppler/Error.h"
+
 
 #include "XeTeX_ext.h"
 
@@ -28,7 +42,7 @@ my_fmin(double x, double y)
 int
 pdf_get_rect(char* filename, int page_num, int pdf_box, realrect* box)
 {
-	GString*	name = new GString(filename);
+	GooString*	name = new GooString(filename);
 	PDFDoc*		doc = new PDFDoc(name);
 	
 	if (!doc) {
diff -up texlive-2007/texk/web2c/xetexdir/XeTeX_ext.c.poppler texlive-2007/texk/web2c/xetexdir/XeTeX_ext.c
--- texlive-2007/texk/web2c/xetexdir/XeTeX_ext.c.poppler	2007-01-15 14:04:36.000000000 +0100
+++ texlive-2007/texk/web2c/xetexdir/XeTeX_ext.c	2007-11-28 11:53:15.000000000 +0100
@@ -33,7 +33,7 @@ authorization from SIL International.
  */
 
 #ifdef XETEX_OTHER
-#include "xpdf/config.h"
+#include "poppler/poppler-config.h"
 #include "png.h"
 #endif
 
@@ -194,7 +194,7 @@ void initversionstring(char **versions)
 #else
 		"Compiled with fontconfig version %d.%d.%d; using %d.%d.%d\n"
 		"Compiled with libpng version %s; using %s\n"
-		"Compiled with xpdf version %s\n"
+		"Compiled with libpoppler version %s\n"
 #endif
 		;
 
diff -up texlive-2007/texk/web2c/xetexdir/xetex.mk.poppler texlive-2007/texk/web2c/xetexdir/xetex.mk
--- texlive-2007/texk/web2c/xetexdir/xetex.mk.poppler	2007-11-28 11:53:15.000000000 +0100
+++ texlive-2007/texk/web2c/xetexdir/xetex.mk	2007-11-28 11:53:15.000000000 +0100
@@ -4,6 +4,10 @@
 
 Makefile: $(srcdir)/xetexdir/xetex.mk
 
+# use libpoppler instead of included xpdf code
+ADDLDFLAGS = -lpoppler
+
+
 # We build xetex unless configure decides to skip it
 xetex = @XETEX@ xetex
 
@@ -29,7 +33,7 @@ xetex = @XETEX@ xetex
 
 @XETEX_GENERIC@ XETEX_DEFINES = -DXETEX_OTHER
 
- at XETEX_GENERIC@ EXTRALIBS = @LDLIBXPDF@ @LDLIBPNG@ @LDFONTCONFIG@
+ at XETEX_GENERIC@ EXTRALIBS = @LDLIBXPDF@ @LDLIBPNG@ @LDFONTCONFIG@ $(ADDLDFLAGS)
 
 @XETEX_GENERIC@ EXTRADEPS = @LIBXPDFDEP@ @LIBPNGDEP@
 
@@ -144,7 +148,7 @@ pngimage.o: $(srcdir)/xetexdir/pngimage.
 	$(compile) $(ALL_CFLAGS) $(LIBPNGCPPFLAGS) $(ZLIBCPPFLAGS) -c $< -o $@
 
 pdfimage.o: $(srcdir)/xetexdir/pdfimage.cpp $(srcdir)/xetexdir/pdfimage.h
-	$(CXX) $(ALL_CFLAGS) $(LIBXPDFCPPFLAGS) -c $< -o $@
+	$(CXX) $(ALL_CFLAGS) $(LIBXPDFCPPFLAGS) -I/usr/include/poppler -c $< -o $@
 
 XeTeX_pic.o: $(srcdir)/xetexdir/XeTeX_pic.c $(srcdir)/xetexdir/XeTeX_ext.h $(XeTeXImageHdrs)
 	$(compile) $(TECKITFLAGS) $(ALL_CFLAGS) $(XETEX_DEFINES) -c $< -o $@
@@ -187,7 +191,7 @@ XeTeXOTMath.o: $(srcdir)/xetexdir/XeTeXO
 
 # special rules for files that need the TECkit headers as well
 XeTeX_ext.o: $(srcdir)/xetexdir/XeTeX_ext.c xetexd.h
-	$(compile) $(ICUCFLAGS) $(FTFLAGS) $(TECKITFLAGS) $(LIBPNGCPPFLAGS) $(LIBXPDFCPPFLAGS) $(ZLIBCPPFLAGS) $(ALL_CFLAGS) $(XETEX_DEFINES) -c $< -o $@
+	$(compile) $(ICUCFLAGS) $(FTFLAGS) $(TECKITFLAGS) $(LIBPNGCPPFLAGS) $(LIBXPDFCPPFLAGS) $(ZLIBCPPFLAGS) $(ALL_CFLAGS) $(XETEX_DEFINES) -I/usr/include/poppler -c $< -o $@
 XeTeX_mac.o: $(srcdir)/xetexdir/XeTeX_mac.c xetexd.h
 	$(compile) $(ICUCFLAGS) $(TECKITFLAGS) $(ALL_CFLAGS) $(XETEX_DEFINES) -c $< -o $@
 
diff -up texlive-2007/configure.poppler texlive-2007/configure
--- texlive-2007/configure.poppler	2007-01-09 15:16:26.000000000 +0100
+++ texlive-2007/configure	2007-11-28 11:53:15.000000000 +0100
@@ -3442,9 +3442,9 @@ export needs_zlib
 
 # we need libxpdf for pdf[ex]tex, xetex
 test ! -d $srcdir/$LIBXPDFDIR && : ${needs_libxpdf=no}
-test "$with_pdftex"  != no    && : ${needs_libxpdf=yes}
-test "$with_pdfetex" != no    && : ${needs_libxpdf=yes}
-test "$with_xetex"   != no    && : ${needs_libxpdf=yes}
+test "$with_pdftex"  != no    && : ${needs_libxpdf=no}
+test "$with_pdfetex" != no    && : ${needs_libxpdf=no}
+test "$with_xetex"   != no    && : ${needs_libxpdf=no}
 : ${needs_libxpdf=no}
 export needs_libxpdf
 
diff -up texlive-2007/configure.in.poppler texlive-2007/configure.in
--- texlive-2007/configure.in.poppler	2007-01-09 02:17:11.000000000 +0100
+++ texlive-2007/configure.in	2007-11-28 11:53:15.000000000 +0100
@@ -157,9 +157,9 @@ export needs_zlib
 
 # we need libxpdf for pdf[ex]tex, xetex
 test ! -d $srcdir/$LIBXPDFDIR && : ${needs_libxpdf=no}
-test "$with_pdftex"  != no    && : ${needs_libxpdf=yes}
-test "$with_pdfetex" != no    && : ${needs_libxpdf=yes}
-test "$with_xetex"   != no    && : ${needs_libxpdf=yes}
+test "$with_pdftex"  != no    && : ${needs_libxpdf=no}
+test "$with_pdfetex" != no    && : ${needs_libxpdf=no}
+test "$with_xetex"   != no    && : ${needs_libxpdf=no}
 : ${needs_libxpdf=no}
 export needs_libxpdf
 
@@ -207,7 +207,7 @@ dnl We cannot use variables (e.g. $LIBPN
 sinclude(libs/libpng/libpng.ac)
 sinclude(libs/zlib/zlib.ac)
 sinclude(libs/ncurses/ncurses.ac)
-sinclude(libs/xpdf/libxpdf.ac)
+#sinclude(libs/xpdf/libxpdf.ac)
 sinclude(libs/t1lib/t1lib.ac)
 sinclude(libs/gd/gd.ac)
 sinclude(libs/freetype/freetype.ac)


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