FIX: VISTA_64BIT was not always correctly set after yesterdays changes

git-svn-id: https://svn.rwth-aachen.de/repos/vrgroup-svn/projects/VistaCMakeCommon/trunk@51816 33c38b33-09d2-4561-8d4d-1bfa2f58f885

VistaHWArchSettings.cmake

@@ -9,8 +9,6 @@
 #    VISTA_64BIT     - set to true if the code is compiled for 64bit execution
 #    VISTA_PLATFORM_DEFINE - compiler definition for the platform ( -DWIN32 or -DLINUX or -DDARWIN )
 
-if( NOT VISTA_HWARCH )
-
 set( CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS TRUE )
 
 if( CMAKE_SIZEOF_VOID_P EQUAL 8 )
@@ -19,6 +17,7 @@ if( NOT VISTA_HWARCH )
 	SET( VISTA_64BIT FALSE )
 endif()
 
+if( NOT VISTA_HWARCH )
 	if( WIN32 )
 		set( VISTA_PLATFORM_DEFINE -DWIN32 )
 
@@ -67,7 +66,6 @@ if( NOT VISTA_HWARCH )
 	else()
 		message( WARNING "VistaHWarchSettings - Could not detect hardware architecture" )
 	endif()
-endif()
 	
 	set( VISTA_HWARCH "${VISTA_HWARCH}" CACHE STRING "ViSTA definition of architectures descriptor" )
 	set( VISTA_COMPATIBLE_HWARCH "${VISTA_COMPATIBLE_HWARCH}" CACHE STRING "ViSTA descriptors for compatible architectures" )
@@ -78,3 +76,5 @@ mark_as_advanced( VISTA_PLATFORM_DEFINE )
 	if( NOT VISTA_HWARCH OR NOT VISTA_COMPATIBLE_HWARCH OR NOT VISTA_PLATFORM_DEFINE )
 		message( FATAL_ERROR "VistaHWArch could not detect all required settings - please ensure that VISTA_HWARCH, VISTA_COMPATIBLE_HWARCH, and VISTA_PLATFORM_DEFINE are set" )
 	endif()
+endif()
+