From: simonm <unknown>
Date: Mon, 22 Dec 1997 13:32:04 +0000 (+0000)
Subject: [project @ 1997-12-22 13:32:04 by simonm]
X-Git-Tag: Approx_2487_patches~1128
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=3efc99ef191ca191d3b0f91008b6b8ff0f12d579;p=ghc-hetmet.git

[project @ 1997-12-22 13:32:04 by simonm]
reinforce the test for Happy: version 1.4 or later is now *required*
---

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)