I'm using lyx (1.1.6fix3) as a front-end to build Linuxdoc SGML. I've had some
problems with users either not using a version of Lyx that supports this, or
who haven't configured Lyx with sgmltools support, so I thought I'd write an
Autoconf macro to check whether Lyx support Linuxdoc.
I thought to query Lyx itself and see, but couldn't find a command line
argument to check (I could just run lyx -e linuxdoc empty.lyx, but I *think*
that on older version of Lyx that'll run the full UI, which would not be
desirable in a configure script).
I noted the textclass.lst file in the Lyx share directory, and thought that if
it answered to:
grep "^\"linuxdoc" "$LYXLIBDIR/textclass.lst
Then I would be OK (I note, however, that textclass.lst in my environment
mentions docbook, but Lyx doesn't support export to DocBook (?)).
The man page for Lyx says:
The system directory is determined by searching for the file "chkconfig.ltx".
Directories are searched in this order:
1) -sysdir command line parameter
2) LYX_DIR_11x environment variable
3) Maybe <path of binary>/TOP_SRCDIR/lib
4) <path of binary>/../share/<name of binary>/
5) hardcoded lyx_dir (usually /usr/local/share/lyx on
UNIX and
%X11ROOT%\XFree86\lib\X11\lyx on OS/2 with XFree)
Ack. What's this about TOP_SRCDIR??? Anyhow, my strategy is to search for
chkconfig.ltx following the above search (but ignoring OS/2, alas), and then,
in that dir, do the above mentioned grep to search for linuxdoc support.
Attached is what I came up with for an Autoconf macro -- am I remotely on the
right track? Is there a better way of doing this? (And if you have some
comments on the macro, please fire away!)
Thanks in advance,
Arien Malec
AC_DEFUN(CK_CHECK_PROG_LYX_LINUXDOC,
[AC_MSG_CHECKING([for lyx with linuxdoc])
LYXCHKCONFIG="chkconfig.ltx"
LYXENVDIR="$LYX_DIR_11x"
LYX=`which lyx`
if test -n "$LYX"; then
LYXPATH=`dirname $LYX`
fi
LYXHARDDIR='/usr/local/share/lyx'
LYXLDIR="$LYXPATH/../lib"
LYXSDIR="$LYXPATH/../share/lyx"
for lyxpath in "$LYXENVDIR" "$LYXLDIR" "$LYXSDIR" "$LYXHARDDIR"; do
if test -n "$lyxpath" -a -e "$lyxpath/$LYXCHKCONFIG" ; then
LYXLIBDIR="$lyxpath"
break
fi
done
if grep "^\"linuxdoc" "$LYXLIBDIR/textclass.lst" &> /dev/null; then
AC_MSG_RESULT([yes])
[$1]
else
AC_MSG_RESULT([no])
AC_MSG_WARN([couldn't find lyx with linuxdoc, not building docs])
[$2]
fi])
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