/proc (Solaris).
* config/procfs.m4: Add psinfo check
* config/config.psinfo.c: New file.
* Source/NSProcessInfo.m (+load): Read from psinfo if we can.
(Based on patch #4234 from Jeremy Bettis, with some modifications).
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@21634 72102866-910b-0410-8b05-ffd578937521