Debug facilities:
- add a framework to easily add new ones
- add gdb as a first debug facility
- add patches for gdb
After the kernel checked its installed headers, clean up the mess of .checked.* files.
Reorder scripts/crosstool.sh:
- dump the configuration early
- renice early
- get info about build system early, when setting up the environment
- when in cross or native, the host tools are those of the build system, and only in this case
- elapsed time calculations moved to scripts/functions
Remove handling of the color: it's gone once and for all.
Update tools/addToolVersion.sh:
- handle debug facilities
- commonalise some code
- remove dead tools (cygwin, tcc)
Point to my address for bug reports.

 See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10331

 and http://gcc.gnu.org/ml/gcc-patches/2003-06/msg00423.html

 --- gcc-3.3/gcc/config/sh/t-linux.old	Wed Jun  4 13:01:39 2003

 +++ gcc-3.3/gcc/config/sh/t-linux	Wed Jun  4 13:02:12 2003

 @@ -1,3 +1,6 @@

 +# Don't run fixproto

 +STMP_FIXPROTO =

 +

  TARGET_LIBGCC2_CFLAGS = -fpic

  LIB1ASMFUNCS_CACHE = _ic_invalidate