From 54e1f6f5a572e47c5598fd53e3b9eb0a66739def Mon Sep 17 00:00:00 2001
From: Alex Neundorf <neundorf@kde.org>
Date: Sat, 18 Feb 2012 20:58:19 +0100
Subject: [PATCH] GenerateExportHeader: use double quotes around _gcc_version

The GenerateExportHeaders test was failing on one machine, the version
could not be determined there, so the _gcc_version was empty,
so the first argument to if() was empty, so it complained:
http://open.cdash.org/testDetails.php?test=135623436&build=2016288
Use double quotes to turn the non-existant first argument into an empty
string.

Alex
---
 Modules/GenerateExportHeader.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/GenerateExportHeader.cmake b/Modules/GenerateExportHeader.cmake
index 781b6e7d4..f3f61f6ee 100644
--- a/Modules/GenerateExportHeader.cmake
+++ b/Modules/GenerateExportHeader.cmake
@@ -173,7 +173,7 @@ macro(_test_compiler_hidden_visibility)
         _gcc_version "${_gcc_version_info}")
     endif()
 
-    if(${_gcc_version} VERSION_LESS "4.2")
+    if("${_gcc_version}" VERSION_LESS "4.2")
       set(GCC_TOO_OLD TRUE)
       message(WARNING "GCC version older than 4.2")
     endif()