fixed linker being slow on OSX

(cherry picked from commit 788c521ce84c40db4e7e02815d0cc06d020958ef)

platform/osx/detect.py

@@ -67,6 +67,7 @@ def configure(env):
     elif env["target"] == "debug":
         env.Prepend(CCFLAGS=["-g3"])
         env.Prepend(CPPDEFINES=["DEBUG_ENABLED"])
+        env.Prepend(LINKFLAGS=["-Xlinker", "-no_deduplicate"])
 
     ## Architecture