COMP: Support cmake older than 2.4

CMakeLists.txt

@@ -242,6 +242,7 @@ IF(NOT KWSYS_IN_SOURCE_BUILD)
 ENDIF(NOT KWSYS_IN_SOURCE_BUILD)
 
 
+SET(KWSYS_REQUIRE_LARGE_FILE_SUPPORT 0)
 IF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
   MESSAGE(STATUS "Skip large files support because CMake is earlier than 2.4")
 ELSE("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
@@ -253,8 +254,6 @@ ELSE("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
     "Support for 64 bit file systems")
   IF(REQUIRE_LARGE_FILE_SUPPORT)
     SET(KWSYS_REQUIRE_LARGE_FILE_SUPPORT 1)
-  ELSE(REQUIRE_LARGE_FILE_SUPPORT)
-    SET(KWSYS_REQUIRE_LARGE_FILE_SUPPORT 0)
   ENDIF(REQUIRE_LARGE_FILE_SUPPORT)
 ENDIF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)