From c5214c87594e0de68111a9160dba5dc1aceb9a43 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Thu, 19 Apr 2007 14:47:33 +0000
Subject:  Changed date parser to use lex/yacc.

---
 configure.in | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index f4f1e9b7..d1f953e2 100644
--- a/configure.in
+++ b/configure.in
@@ -17,6 +17,15 @@ AC_PROG_MAKE_SET
 AC_PROG_LIBTOOL
 AM_PROG_LIBTOOL
 
+AC_PROG_YACC
+
+AC_PROG_LEX
+if test "$LEX" != flex; then
+  LEX="$SHELL $missing_dir/missing flex"
+  AC_SUBST(LEX_OUTPUT_ROOT, lex.yy)
+  AC_SUBST(LEXLIB, '')
+fi
+
 # Checks for emacs lisp path
 AM_PATH_LISPDIR
 
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