From: Leon Brocard <acme@astray.com>
Date: Tue, 4 May 2010 18:58:36 +0000 (+0100)
Subject: Give an error message if bison is not found at all
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=7b931d503c63a3381b96c75ed6b22069ceb7f371;p=p5sagit%2Fp5-mst-13.2.git

Give an error message if bison is not found at all
---

diff --git a/regen_perly.pl b/regen_perly.pl
index 859495f..a988a63 100644
--- a/regen_perly.pl
+++ b/regen_perly.pl
@@ -66,6 +66,10 @@ die "$0: must be run on an ASCII system\n" unless ord 'A' == 65;
 # the test below to allow that version too. DAPM Feb 04.
 
 my $version = `$bison -V`;
+unless ($version) { die <<EOF; }
+Could not find a version of bison in your path. Please install bison.
+EOF
+
 unless ($version =~ /\b(1\.875[a-z]?|2\.[0134])\b/) { die <<EOF; }
 
 You have the wrong version of bison in your path; currently 1.875