cmake howto: ignoring /usr/local

[Ryan Schmidt]

On Jul 6, 2014, at 10:30 AM, René J.V. Bertin wrote:

> A quick question concerning the MacPorts cmake-fu: I've noticed that you've managed to get cmake to ignore everything installed in /usr/local . I've tried invoking /opt/local/bin/cmake directly (= not through port) with the exact same arguments as port uses, but then it does find libraries I installed myself in /usr/local .
> 
> So: how do you manage to let /usr/local be ignored - clearly you don't rename it temporarily, nor is cmake executed in a chroot ...

I actually didn't think we had managed to get cmake to ignore /usr/local, /sw and /opt/local (when that is not the MacPorts prefix). Many cmake files installed by cmake and other ports explicitly reference those locations, and my ticket requesting these paths be removed by patches has not been addressed, and the maintainer has said he does not think we should be addressing this issue:

https://trac.macports.org/ticket/41720

See also this similar request:

https://trac.macports.org/ticket/41817