From 3efc99ef191ca191d3b0f91008b6b8ff0f12d579 Mon Sep 17 00:00:00 2001
From: simonm <unknown>
Date: Mon, 22 Dec 1997 13:32:04 +0000
Subject: [PATCH] [project @ 1997-12-22 13:32:04 by simonm] reinforce the test
 for Happy: version 1.4 or later is now *required*

---
 aclocal.m4 |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/aclocal.m4 b/aclocal.m4
index 91b1fc6..a4b1767 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -102,6 +102,11 @@ changequote([, ])dnl
 else
    ac_cv_happy_version="";
 fi;
+if expr "$ac_cv_happy_version" "<" 1.4 > /dev/null 2>&1; then
+   echo
+   echo "Happy version 1.4 or later is required to compile GHC."
+   exit 1;
+fi;
 ])
 HappyVersion=$ac_cv_happy_version;
 AC_SUBST(HappyVersion)
-- 
1.7.10.4