sudo port install 所有差的库，
只有openssl 安装了还要提示下面的错误：
Please install the openssl library (with development headers)
解决方案如下：
找到 OpenWrt/include/host-build.mk
ifeq ($(HOST_OS),Darwin) HOST_CFLAGS += -I/usr/local/opt/openssl/include HOST_LDFLAGS += -L/usr/local/opt/openssl/lib endif
改为：
ifeq ($(HOST_OS),Darwin) HOST_CFLAGS += -I/opt/local/include HOST_LDFLAGS += -L/opt/local/lib endif
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