[LyX/master] simplify XCODE_VERSION check

[Stephan Witt]

commit b73c6462d67b0fe26d28ef0549ab76b709879b18
Author: Stephan Witt <sw...@lyx.org>
Date:   Tue Dec 31 15:49:19 2013 +0100

    simplify XCODE_VERSION check

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 755ebcf..023c3e1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -706,7 +706,7 @@ endif()
 
 # Xcode compiler
 if (CMAKE_GENERATOR MATCHES Xcode)
-       if (NOT XCODE_VERSION VERSION_GREATER "5.0")
+       if (XCODE_VERSION VERSION_LESS "5.0")
                # Automatically select the Xcode compiler if not set
                if (NOT DEFINED CMAKE_XCODE_ATTRIBUTE_GCC_VERSION)
                        # XCode >= 3.1 has gcc 4.2 (up to actual Xcode)
@@ -716,7 +716,7 @@ if (CMAKE_GENERATOR MATCHES Xcode)
                ENDIF(NOT DEFINED CMAKE_XCODE_ATTRIBUTE_GCC_VERSION)
                # Print the selected compiler version
        MESSAGE(STATUS "---- Using XCode compiler 
CMAKE_XCODE_ATTRIBUTE_GCC_VERSION=${CMAKE_XCODE_ATTRIBUTE_GCC_VERSION}")
-       ENDIF(NOT XCODE_VERSION VERSION_GREATER "5.0")
+       ENDIF(XCODE_VERSION VERSION_LESS "5.0")
 ENDIF(CMAKE_GENERATOR MATCHES Xcode)
 
 if (WIN32 AND Qt5Core_FOUND)