Patch from Pascal Stumpf <Pascal.Stumpf@cubes.de>
Most is just copied from the existing imake installation in
/usr/X11R6. Additionally:
* Allow overriding CDESharedRev, X11ProjectRoot and ProjectRoot
* Add a new define to be able to override MINCLUDESRC too
(this allows me to build CDE without symlinking any include directories)
- also some rework of linux.cf
- only allow ELF systems
- use -pipe
- add some more defines
- get rid of some of the ancient (libc5/linux 1) support. Really,
don't expect CDE to build right on such old systems.
Jose Rubio