[tlbuild] build failure: chktex needs getopt

[Vladimir Volovich]

Hi!

i've got a build failure on AIX and Solaris in chktex:

gmake[4]: Entering directory `/opt/home/vvv/src/texlive/source/Work/utils/chktex'
source='chktex-1.6.4/ChkTeX.c' object='ChkTeX.o' libtool=no \
        DEPDIR=.deps depmode=none /opt/csw/bin/bash ../../../utils/chktex/../../build-aux/depcomp \
        cc -DHAVE_CONFIG_H -I. -I../../../utils/chktex     -xarch=v8 -O -c -o ChkTeX.o `test -f 'chktex-1.6.4/ChkTeX.c' || echo '../../../utils/chktex/'`chktex-1.6.4/ChkTeX.c
"../../../utils/chktex/chktex-1.6.4/ChkTeX.c", line 30: cannot find include file: "getopt.h"
"../../../utils/chktex/chktex-1.6.4/ChkTeX.c", line 185: warning: syntax error:  empty declaration
"../../../utils/chktex/chktex-1.6.4/ChkTeX.c", line 743: incomplete struct/union/enum option: long_options
"../../../utils/chktex/chktex-1.6.4/ChkTeX.c", line 744: cannot do pointer arithmetic on operand of unknown size
"../../../utils/chktex/chktex-1.6.4/ChkTeX.c", line 744: cannot recover from previous errors
cc: acomp failed for ../../../utils/chktex/chktex-1.6.4/ChkTeX.c
gmake[4]: *** [ChkTeX.o] Error 2

which i solved by copying getopt.h, getopt.c and getopt1.c from the
Build/source/texk/kpathsea/ directory (and running "make getopt.o getopt1.o",
and adding getopt.o getopt1.o to the link command). but i see that they were
previously present in texk/bibtex8 and texk/bibtexu directories, and
later removed, probably to avoid duplication.

please do the right thing to ensure that chktex sees getopt.h and links
with getopt.o and getopt1.o.

Best,
v.