diff -up build/premake/extern_libs4.lua.orig build/premake/extern_libs4.lua
--- build/premake/extern_libs4.lua.orig	2015-03-14 13:30:48.483874704 -0300
+++ build/premake/extern_libs4.lua	2015-03-14 13:31:20.540875931 -0300
@@ -668,7 +668,7 @@ extern_lib_defs = {
 	},
 	valgrind = {
 		compile_settings = function()
-			add_source_include_paths("valgrind")
+			pkgconfig_cflags("valgrind")
 		end,
 	},
 	vorbis = {