gendocs.sh --tex ARG (patch)

[Karl Berry]

Ludo: for gendocs.sh, this patch adds a new option --tex by analogy with
--html.

Also update the copyright year in the help msg, which had not been done
before, and one typo in the leading comments.

karl

--- a/build-aux/gendocs.sh
+++ b/build-aux/gendocs.sh
@@ -2,7 +2,7 @@
 # gendocs.sh -- generate a GNU manual in many formats.  This script is
 #   mentioned in maintain.texi.  See the help message below for usage details.
 
-scriptversion=2015-01-02.22
+scriptversion=2015-04-04.08
 
 # Copyright 2003-2015 Free Software Foundation, Inc.
 #
@@ -29,7 +29,7 @@ scriptversion=2015-01-02.22
 # http://git.savannah.gnu.org/cgit/gnulib.git/tree/doc/gendocs_template
 
 # TODO:
-# - image importation was only implemented for HTML generated by
+# - image importing was only implemented for HTML generated by
 #   makeinfo.  But it should be simple enough to adjust.
 # - images are not imported in the source tarball.  All the needed
 #   formats (PDF, PNG, etc.) should be included.
@@ -42,7 +42,7 @@ 
templateurl="http://git.savannah.gnu.org/cgit/gnulib.git/plain/doc/gendocs_templ
 
 : ${SETLANG="env LANG= LC_MESSAGES= LC_ALL= LANGUAGE="}
 : ${MAKEINFO="makeinfo"}
-: ${TEXI2DVI="texi2dvi -t @finalout"}
+: ${TEXI2DVI="texi2dvi"}
 : ${DOCBOOK2HTML="docbook2html"}
 : ${DOCBOOK2PDF="docbook2pdf"}
 : ${DOCBOOK2TXT="docbook2txt"}
@@ -54,7 +54,7 @@ unset use_texi2html
 
 version="gendocs.sh $scriptversion
 
-Copyright 2013 Free Software Foundation, Inc.
+Copyright 2015 Free Software Foundation, Inc.
 There is NO warranty.  You may redistribute this software
 under the terms of the GNU General Public License.
 For more information about these matters, see the files named COPYING."
@@ -81,6 +81,7 @@ Options:
   --no-tex     skip generating the dvi and pdf output.
   --source ARG include ARG in tar archive of sources.
   --split HOW  make split HTML by node, section, chapter; default node.
+  --tex ARG    pass ARG to texi2dvi for DVI and PDF, instead of -t @finalout.
 
   --texi2html  use texi2html to make HTML target, with all split versions.
   --docbook    convert through DocBook too (xml, txt, html, pdf).
@@ -151,6 +152,7 @@ outdir=manual
 source_extra=
 split=node
 srcfile=
+texarg="-t @finalout"
 
 while test $# -gt 0; do
   case $1 in
@@ -168,6 +170,7 @@ while test $# -gt 0; do
     --no-tex)    generate_tex=false;;
     --source)    shift; source_extra=$1;;
     --split)     shift; split=$1;;
+    --tex)       shift; texarg=$1;;
     --texi2html) use_texi2html=1;;
 
     --help)      echo "$usage"; exit 0;;
@@ -293,7 +296,7 @@ fi  # end info
 
 # 
 if $generate_tex; then
-  cmd="$SETLANG $TEXI2DVI $dirargs \"$srcfile\""
+  cmd="$SETLANG $TEXI2DVI $dirargs $texarg \"$srcfile\""
   printf "\nGenerating dvi... ($cmd)\n"
   eval "$cmd"
   # compress/finish dvi:
@@ -302,7 +305,7 @@ if $generate_tex; then
   mv $PACKAGE.dvi.gz "$outdir/"
   ls -l "$outdir/$PACKAGE.dvi.gz"
 
-  cmd="$SETLANG $TEXI2DVI --pdf $dirargs \"$srcfile\""
+  cmd="$SETLANG $TEXI2DVI --pdf $dirargs $texarg \"$srcfile\""
   printf "\nGenerating pdf... ($cmd)\n"
   eval "$cmd"
   pdf_size=`calcsize $PACKAGE.pdf`