$OpenBSD: patch-CMakeLists_txt,v 1.8 2013/11/25 12:58:58 jasper Exp $

Don't clobber CFLAGS.

--- CMakeLists.txt.orig	Wed Nov 20 12:53:33 2013
+++ CMakeLists.txt	Mon Nov 25 13:42:48 2013
@@ -274,7 +274,7 @@ IF (MSVC)
    # Precompiled headers
 
 ELSE ()
-	SET(CMAKE_C_FLAGS "-D_GNU_SOURCE -Wall -Wextra -Wno-missing-field-initializers -Wstrict-aliasing=2 -Wstrict-prototypes ${CMAKE_C_FLAGS}")
+	SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_GNU_SOURCE -Wall -Wextra -Wno-missing-field-initializers -Wstrict-aliasing=2 -Wstrict-prototypes ${CMAKE_C_FLAGS}")
 
 	IF (WIN32 AND NOT CYGWIN)
 		SET(CMAKE_C_FLAGS_DEBUG "-D_DEBUG")
