From 628edd3c0b75e5a36809da4f8905d98af513a7c1 Mon Sep 17 00:00:00 2001
From: nigels <nigels@783a27ee-832a-0410-bc00-9f386506c6dd>
Date: Wed, 10 Mar 2010 15:37:02 +0000
Subject: [PATCH] Only check OpenGL extension string if there is a non-empty
 string to check for.  GL_VERSION_* are detected from the version info.

git-svn-id: https://glew.svn.sourceforge.net/svnroot/glew/trunk/glew@589 783a27ee-832a-0410-bc00-9f386506c6dd
---
 auto/bin/make_list.pl | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/auto/bin/make_list.pl b/auto/bin/make_list.pl
index 3bf4359..ceaa479 100755
--- a/auto/bin/make_list.pl
+++ b/auto/bin/make_list.pl
@@ -43,7 +43,12 @@ if (@ARGV)
 		#my $pextvar = prefix_varname($extvar);
 
 		print "#ifdef $extname\n";
-		print "  CONST_CAST(" . $extvar . ") = " . $extpre . "GetExtension(\"$extname\");\n";
+
+                if (length($extstring))
+                {
+		        print "  CONST_CAST(" . $extvar . ") = " . $extpre . "GetExtension(\"$extstring\");\n";
+                }
+
 		if (keys %$functions)
 		{
 			if ($extname =~ /WGL_.*/)