'system cflags' with other prefix

Craig Treleaven ctreleaven at cogeco.ca
Tue Jan 12 07:49:37 PST 2016

> On Jan 12, 2016, at 10:41 AM, Tollef Fog Heen <tfheen at err.no> 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.

I think pkg-config was built the way you suggest.  Following are the args supplied to pkg-config’s configure through the MacPorts build:

configure.args      --disable-silent-rules \
                    --disable-host-tool \
                    --with-pc-path=${prefix}/lib/pkgconfig:${prefix}/share/pkgconfig \
                    --with-internal-glib \


${prefix} is /opt/local for a default install.

Should we be using some other configure arguments? 


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