Abort configure if lex or flex cannot be found.

git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@513 db0b04b0-f4d1-0310-9a6d-de3e77497b0e
2009-10-21 15:03:56 +00:00 · 2009-10-21 15:03:56 +00:00 · 2d92746975
parent 0d2f412ae6
commit 2d92746975
1 changed files with 4 additions and 0 deletions
--- a/configure.ac
+++ b/configure.ac
@ -9,7 +9,11 @@ AC_CONFIG_HEADER(config.h)

 AC_PROG_CC(cc gcc)
 AC_STDC_HEADERS
+
 AC_PROG_LEX
+if test "x$LEX" != xflex; then
+   AC_MSG_ERROR([lex or flex not found.])
+fi

 LIBS="$LIBS $LEXLIB"