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.

 # gcc-3.x doesn't like run-on strings

 # See also http://sources.redhat.com/ml/libc-alpha/2004-01/msg00032.html

 --- glibc-2.1.3/csu/Makefile.old	2004-03-04 12:18:52.000000000 -0800

 +++ glibc-2.1.3/csu/Makefile	2004-03-04 12:19:35.000000000 -0800

 @@ -188,8 +188,8 @@

  	 esac; \

  	 files="$(all-Banner-files)";				\

  	 if test -n "$$files"; then				\

 -	   echo "\"Available extensions:";			\

 -	   sed -e '/^#/d' -e 's/^[[:space:]]*/	/' $$files;	\

 -	   echo "\"";						\

 +	   echo -e "\"Available extensions:\\\\n\"";		\

 +  	   sed -e '/^#/d' -e 's/^[[:space:]]*/	/'		\

 +	       -e 's/^\(.*\)$$/\"\1\\n\"/' $$files;		\

  	 fi) > $@T

  	mv -f $@T $@