[NaCl] Add support for building using glibc toolchain.

samples/Cpp/TestCpp/proj.nacl/Makefile

 COCOS_ROOT = ../../../..
 COCOS2DX_PATH = $(COCOS_ROOT)/cocos2dx
 
 INCLUDES =      -I.. -I../Classes \
         -I$(COCOS_ROOT)/CocosDenshion/include \
         -I$(COCOS_ROOT)/extensions \
         -I$(COCOS_ROOT)/external \
         -I$(COCOS_ROOT)/external/chipmunk/include/chipmunk \
 
 SOURCES = ../Classes/AccelerometerTest/AccelerometerTest.cpp \
@@ skipping 114 matching lines @@
 
 $(OBJ_DIR)/%.o: %.cpp $(CORE_MAKEFILE_LIST)
         @mkdir -p $(@D)
         $(LOG_CXX)$(NACL_CXX) -MMD $(CXXFLAGS) $(INCLUDES) $(DEFINES) -c $< -o $@
 
 $(OBJ_DIR)/%.o: ../%.c $(CORE_MAKEFILE_LIST)
         @mkdir -p $(@D)
         $(LOG_CC)$(NACL_CC) -MMD $(CCFLAGS) $(INCLUDES) $(DEFINES) -c $< -o $@
 
 $(NMF): $(TARGET)
-        $(NACL_SDK_ROOT)/tools/create_nmf.py -o $@ $(BIN_DIR)/*.nexe --objdump=i686-nacl-objdump -L$(NACL_SDK_ROOT)/toolchain/linux_x86_newlib/x86_64-nacl/lib/ -s $(BIN_DIR)
+        $(NACL_SDK_ROOT)/tools/create_nmf.py -o $@ $(BIN_DIR)/*.nexe $(NMF_FLAGS) -s $(BIN_DIR)
 
 PACKAGE_ROOT = $(OUT_DIR)/package
 
 package: all
         rm -rf $(PACKAGE_ROOT)
         mkdir -p $(PACKAGE_ROOT)
         /bin/cp -ar ../Resources/ $(PACKAGE_ROOT)
         /bin/cp -ar $(BIN_DIR)/* $(PACKAGE_ROOT)
         /bin/cp res/*.js res/icon*.png res/manifest.json $(PACKAGE_ROOT)
         /bin/cp res/package_index.html $(PACKAGE_ROOT)/index.html
 
 zipfile: package
         rm -f $(OUT_DIR)/$(APP_NAME).zip
         cd $(PACKAGE_ROOT) && zip -r ../$(APP_NAME).zip .
 
 run: all
         /bin/cp -ar ../Resources/ .
         $(NACL_SDK_ROOT)/tools/httpd.py --no_dir_check
 
 .PHONY: run zipfile package