use explicit file paths for CMake rather then globing, This is recommended by cmake devs.

globbing vs explicit is discussed here.
http://www.cmake.org/pipermail/cmake/2008-December/025694.html

Practical implications are:
- developers need to keep CMakeLists.txt files up to date.
- Users wont get strange linking errors if they build after a file is added, since CMake detects CMakeLists.txt is modified and automatically reconfigure.

source/blender/windowmanager/CMakeLists.txt

@@ -24,8 +24,6 @@
 #
 # ***** END GPL LICENSE BLOCK *****
 
-FILE(GLOB SRC intern/*.c)
-
 SET(INC
 	.
 	../nodes
@@ -50,6 +48,23 @@ SET(INC
 	${OPENGL_INCLUDE_DIR}
 )
 
+SET(SRC
+	intern/wm.c
+	intern/wm_apple.c
+	intern/wm_cursors.c
+	intern/wm_dragdrop.c
+	intern/wm_draw.c
+	intern/wm_event_system.c
+	intern/wm_files.c
+	intern/wm_gesture.c
+	intern/wm_init_exit.c
+	intern/wm_jobs.c
+	intern/wm_keymap.c
+	intern/wm_operators.c
+	intern/wm_subwindow.c
+	intern/wm_window.c
+)
+
 ADD_DEFINITIONS(-DGLEW_STATIC)
 
 IF(WITH_INTERNATIONAL)