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/editors/datafiles/CMakeLists.txt

@@ -19,8 +19,45 @@
 #
 # ***** END GPL LICENSE BLOCK *****
 
-FILE(GLOB SRC *.c)
-
 SET(INC "")
 
+SET(SRC
+	Bfont.c
+	add.png.c
+	bfont.ttf.c
+	blenderbuttons.c
+	blob.png.c
+	blur.png.c
+	bmonofont.ttf.c
+	clay.png.c
+	clone.png.c
+	crease.png.c
+	darken.png.c
+	draw.png.c
+	fill.png.c
+	flatten.png.c
+	grab.png.c
+	inflate.png.c
+	layer.png.c
+	lighten.png.c
+	mix.png.c
+	multiply.png.c
+	nudge.png.c
+	pinch.png.c
+	preview.blend.c
+	prvicons.c
+	scrape.png.c
+	smear.png.c
+	smooth.png.c
+	snake_hook.png.c
+	soften.png.c
+	splash.png.c
+	startup.blend.c
+	subtract.png.c
+	texdraw.png.c
+	thumb.png.c
+	twist.png.c
+	vertexdraw.png.c
+)
+
 BLENDERLIB(bf_editor_datafiles "${SRC}" "${INC}")