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.

2000-08-03  Ulrich Drepper  <drepper@redhat.com>

	* pthread.c (__pthread_set_own_extricate_if): Remove locking.

--- glibc-2.1.3/linuxthreads/pthread.c.jj	Wed Mar 22 22:26:01 2000

+++ glibc-2.1.3/linuxthreads/pthread.c	Fri Aug 25 09:37:26 2000

@@ -775,9 +775,7 @@ weak_alias (__pthread_getconcurrency, pt

 void __pthread_set_own_extricate_if(pthread_descr self, pthread_extricate_if *peif)

 {

-  __pthread_lock(self->p_lock, self);

   THREAD_SETMEM(self, p_extricate, peif);

-  __pthread_unlock(self->p_lock);

 }

 /* Primitives for controlling thread execution */