-# Can we rebuild the parsers?
-# We really want flex and refuse other lex. So, the parser is portable and
-# does not induce extra lib dependency
-AC_PROG_LEX
-if test "$LEX" != flex; then
- AC_MSG_NOTICE([Will not rebuild the parsers. I want flex.])
- LEX="$SHELL $missing_dir/missing flex";
-else
-changequote(<<, >>)dnl because of the regexp [[:blank:]]
- FLEX_VERSION=`flex --version`;
- FLEX_VER_MAJ=`echo $FLEX_VERSION | sed 's/[^0-9\.]*//g' | sed 's/\..*//g'`;
- FLEX_VER_MED=`echo $FLEX_VERSION | sed 's/[^0-9\.]*//g' | sed 's/[0-9]*\.\([0-9]*\)\.[0-9]*/\1/g'`;
- FLEX_VER_MIN=`echo $FLEX_VERSION | sed 's/[^0-9\.]*//g' | sed 's/.*\.//g'`;
-changequote([, ])dnl back to normality, there is no regexp afterward
- if test $FLEX_VER_MAJ -lt 2 ; then
- AC_MSG_NOTICE([Will not rebuild the parsers. Your flex is too old.])
- LEX="$SHELL $missing_dir/missing flex";
- else
- if test $FLEX_VER_MAJ -eq 2 ; then
- if test $FLEX_VER_MED -lt 5 ; then
- AC_MSG_NOTICE([Will not rebuild the parsers. Your flex is too old.])
- LEX="$SHELL $missing_dir/missing flex";
- else
- if test $FLEX_VER_MED -eq 5 ; then
- if test $FLEX_VER_MIN -lt 31 ; then
- AC_MSG_NOTICE([Will not rebuild the parsers. Your flex is too old.])
- LEX="$SHELL $missing_dir/missing flex";
- fi;
- fi;
- fi;
- fi;
- fi;
-fi
-
-# Can we rebuild the xml-lexers from the XML specification?
-# if not, simply touch the flex source files (which are distributed in
-# tarballs even if generated by flexml) and hope for the best.
-AC_CHECK_PROG(FLEXML,flexml,,NOTFOUND)
-AM_CONDITIONAL(HAVE_FLEXML,test x$FLEXML != NOTFOUND)
-