mac 下环境变量配置 gcc找不到usr/local

mac下gcc/g++找不到 /usr/local/include /usr/local/lib的解决方法：

//
C_INCLUDE_PATH=/usr/local/include/
export C_INCLUDE_PATH
CPLUS_INCLUDE_PATH=/usr/local/include/
export CPLUS_INCLUDE_PATH
export LIBRARY_PATH=/usr/local/lib/