On Jan 12, 2016 8:18 AM, "Tollef Fog Heen" <<a href="mailto:tfheen@err.no">tfheen@err.no</a>> wrote: > > ]] Craig Treleaven > > > Eg, with MacPorts: > > $ pkg-config --cflags x264 > > -I/opt/local/include ## want to make this disappear since it is the ‘system include' > > If /opt/local/include is already on the compiler search path, pkg-config > should be compiled with that knowledge, at which point it'll strip it > out, like /usr/include on Linux. This isn't documented (should be), but you can override pkg-config's notion of the system include path with the environment variable PKG_CONFIG_SYSTEM_INCLUDE_PATH. If that's not set, it uses the compiled in defaults. That's been in pkg-config for a long time, so it should work with the version you have. This should be in the form of a path style variable with : separators. Dan