plex_find_header(shairport/shairport.h ${dependdir}/include) if(DEFINED HAVE_SHAIRPORT_SHAIRPORT_H) CHECK_C_SOURCE_COMPILES(" #include int main(int argc, char *argv[]) { static struct AudioOutput test; if(sizeof(test.ao_set_metadata)) return 0; return 0; } " HAVE_STRUCT_AUDIOOUTPUT_AO_SET_METADATA) endif()