diff --git a/CMakeLists.txt b/CMakeLists.txt
index 85132055b..98c208f07 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -133,6 +133,16 @@ if(CMAKE_COMPILER_IS_GNUCC)
 	endif()
 
 	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+
+	# Hack to strip absolute paths out of the __FILE__ macro
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__FILE__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILE__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'")
+	CHECK_C_COMPILER_FLAG (-Wno-builtin-macro-redefined Wno-builtin-macro-redefined)
+	if(Wno-builtin-macro-redefined)
+		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-builtin-macro-redefined")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-builtin-macro-redefined")
+	endif()
+
 	CHECK_C_COMPILER_FLAG (-Wno-unused-result Wno-unused-result)
 	if(Wno-unused-result)
 		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-result")