curl-config --static-libs
curl -i -d "grant_type=client_credentials&client_id=8EEdQ1cwlXKwc9sg5owY2qma&client_secret=ac9db65885f25bbf4d327f36c9a26a65&" "https://openapi.baidu.com/oauth/2.0/token"
curl -G -d "tex='你好'&lan=zh&cuid='12345678'&ctp=1&tok='24.e8f9c802abb8ab6a6f7cff91eef340f3.2592000.1445583379.282335-6738735'" "http://tsn.baidu.com/text2audio"
LDFLAGS: -L/usr/local/opt/curl/lib
CPPFLAGS: -I/usr/local/opt/curl/include
curl-config --protocols
curl --version