From 20cb5edbcaaf89c35638911c27e6aec1c7fc022f Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike@sf-mail.de>
Date: Fri, 18 Nov 2011 16:14:54 +0100
Subject: [PATCH] FindBISON: Fix matching output of "bison --version"

The output may contain semicolons, which will confuse the IF() because of
missing quoting.
---
 Modules/FindBISON.cmake | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Modules/FindBISON.cmake b/Modules/FindBISON.cmake
index 25fd51de6..edde9eb96 100644
--- a/Modules/FindBISON.cmake
+++ b/Modules/FindBISON.cmake
@@ -68,11 +68,11 @@ IF(BISON_EXECUTABLE)
     MESSAGE(SEND_ERROR "Command \"${BISON_EXECUTABLE} --version\" failed with output:\n${BISON_version_error}")
   ELSE()
     # Bison++
-    IF(${BISON_version_output} MATCHES "^bison\\+\\+")
+    IF("${BISON_version_output}" MATCHES "^bison\\+\\+")
       STRING(REGEX REPLACE "^bison\\+\\+ Version ([^,]+).*" "\\1"
         BISON_VERSION "${BISON_version_output}")
     # GNU Bison
-    ELSEIF(${BISON_version_output} MATCHES "^bison[^+]")
+    ELSEIF("${BISON_version_output}" MATCHES "^bison[^+]")
       STRING(REGEX REPLACE "^bison \\(GNU Bison\\) ([^\n]+)\n.*" "\\1"
         BISON_VERSION "${BISON_version_output}")
     ELSE()