wpa_supplicant交叉编译：
1.cd wpa_supplicant-0.7.3/wpa_supplicant
2.cp deconfig .config
3.vi .config
加上下面的内容：
1 CC=arm-linux-gnueabihf-gcc 2 3 CFLAGS += -I$(abspath ../../openssl-1.0.2r/__install/include) 4 LDFLAGS += -L$(abspath ../../openssl-1.0.2r/__install/lib) 5 LDFLAGS += -L$(abspath ../../libnl-3.2.25/__install/lib)
4.make