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.

Fixes

iconvconfig.c: In function 'write_output':

iconvconfig.c:973: error: invalid storage class for function 'name_insert'

--- glibc-2.2.5/iconv/iconvconfig.c.old	2002-01-20 19:20:53.000000000 -0800

+++ glibc-2.2.5/iconv/iconvconfig.c	2005-03-11 14:30:27.000000000 -0800

@@ -969,7 +969,12 @@

   char tmpfname[sizeof (GCONV_MODULES_CACHE) + strlen (".XXXXXX")];

   /* Function to insert the names.  */

-  static void name_insert (const void *nodep, VISIT value, int level)

+#if __GNUC__ >= 4

+  auto 

+#else

+  static 

+#endif

+  void name_insert (const void *nodep, VISIT value, int level)

     {

       struct name *name;

       unsigned int idx;