--- Makefile.orig	2013-10-29 15:19:19.000000000 +0900
+++ Makefile	2013-10-31 18:45:36.000000000 +0900
@@ -54,9 +54,9 @@
 CC.target ?= $(CC)
 CFLAGS.target ?= $(CFLAGS)
 CXX.target ?= $(CXX)
-CXXFLAGS.target ?= $(CXXFLAGS)
+CXXFLAGS.target ?= %%GCCCXXFLAGS%% $(CXXFLAGS)
 LINK.target ?= $(LINK)
-LDFLAGS.target ?= $(LDFLAGS)
+LDFLAGS.target ?= %%GCCLDFLAGS%% $(LDFLAGS)
 AR.target ?= $(AR)
 ARFLAGS.target ?= crs
 
@@ -64,12 +64,12 @@
 # in gyp's make.py where ARFLAGS.host etc. is computed.
 # TODO(evan): move all cross-compilation logic to gyp-time so we don't need
 # to replicate this environment fallback in make as well.
-CC.host ?= gcc
-CFLAGS.host ?=
-CXX.host ?= g++
-CXXFLAGS.host ?=
-LINK.host ?= g++
-LDFLAGS.host ?=
+CC.host ?= $(CC)
+CFLAGS.host ?= $(CFLAGS)
+CXX.host ?= $(CXX)
+CXXFLAGS.host ?= %%GCCCXXFLAGS%% $(CXXFLAGS)
+LINK.host ?= $(LINK)
+LDFLAGS.host ?= %%GCCLDFLAGS%% $(LDFLAGS)
 AR.host ?= ar
 ARFLAGS.host := crs