Jeff Hammond <[email protected]> writes:

...

/util/common/openmpi/3.0.0/gcc-4.8.5/bin:/usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/usr/lpp/mmfs/bin:/opt/dell/srvadmin/bin:/user/knepley/bin

...

I cannot see why it would say this.

It's complaining that the CC is two words instead of a single path. You can make a link

ln -s `which ccache` ~/bin/mpicc

and then CC=$HOME/bin/mpicc will work. Yes, it's irritating.

While we are proposing features that place no value on users’ time, why not just ask them to implement their own MPI wrapper scripts with ccache on the inside?

Make no mistake: I am not making excuses for CMake, merely providing Matt with a workable solution.