RT，用theos创建的tools模板如何使用C函数，例如main.mm中extern “C”{#include “dlfcn.h”}，然后报错
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.4.sdk/usr/include/dlfcn.h:37:error: Unsupported architecture
我的makefile文件如下：
export ARCHS = armv7 armv7s arm64
include theos/makefiles/common.mk
TOOL_NAME = test
test_FILES = main.mm
include $(THEOS_MAKE_PATH)/tool.mk
请教各位大神，我该咋搞~ 不胜感激