Intel oneAPI pgopti create full path

When using Intel oneAPI compilers on Windows, you may get a message like:

INTERNAL ERROR: pgopti_Create_Full_Path: buffer too small

This is probably caused by a filepath that’s more than 139 characters. You may not see the paths printed as being that long, because CMake with Ninja does preprocessing on each Fortran file that lengthens the filename.

The fix is to make the project paths shorter. Users may have to build code from a directory nearer the top of the filesystem hierarchy.