--- a/misc/libphysfs/CMakeLists.txt	Tue Jun 04 15:41:40 2013 +0200
+++ b/misc/libphysfs/CMakeLists.txt	Tue Jun 04 15:51:06 2013 +0200
@@ -11,11 +11,6 @@
 # Increment this if/when we break backwards compatibility.
 set(PHYSFS_SOVERSION 1)
 
-# 32bit platforms won't link unless this is set
-if(CMAKE_SIZEOF_VOID_P LESS 8)
-    add_definitions(-DPHYSFS_NO_64BIT_SUPPORT=1)
-endif(CMAKE_SIZEOF_VOID_P LESS 8)
-
 # I hate that they define "WIN32" ... we're about to move to Win64...I hope!
 if(WIN32 AND NOT WINDOWS)
     set(WINDOWS TRUE)
@@ -40,6 +35,15 @@
 include(CheckCSourceCompiles)
 
 
+# 32bit platforms won't link unless this is set
+# although Windows doesn't like it
+if(NOT WINDOWS)
+    if(CMAKE_SIZEOF_VOID_P LESS 8)
+        add_definitions(-DPHYSFS_NO_64BIT_SUPPORT=1)
+    endif(CMAKE_SIZEOF_VOID_P LESS 8)
+endif(NOT WINDOWS)
+
+
 if(MACOSX)
     # Fallback to older OS X on PowerPC to support wider range of systems...
     if(CMAKE_OSX_ARCHITECTURES MATCHES ppc)