cmake HAVE_GETSERVBYNAME examples

wxWidgets/wxWidgets build/cmake/setup.cmake :390 

check_symbol_exists(getservbyname netdb.h HAVE_GETSERVBYNAME)

Ravbug/UnityHubNative wxWidgets/build/cmake/setup.cmake :390 

check_symbol_exists(getservbyname netdb.h HAVE_GETSERVBYNAME)

ShadowsocksR-Live/shadowsocksr-native cmake/configure.cmake :139 

check_function_exists(getservbyname HAVE_GETSERVBYNAME)