Huge fixes to glibc build, so that we can build at least (and at last):
- use ports addon even when installing headers,
- use optimisation (-O) when installing headers, to avoid unnecessary warnings (thanks Robert P. J. DAY for pointing this out!),
- lowest kernel version to use is only X.Y.Z, not X.Y.Z.T,
- a bit of preparations for NPTL (RSN I hope),
- fix fixing the linker scripts (changing the backup file is kind of useless and stupid);

Shut uClibc finish step: there really is nothing to do;

Add a patch for glibc-2.3.6 weak aliases handling on some archs (ARM and ALPHA at least);

Did not catch the make errors: fixed the pattern matching in scripts/functions;

Introduce a new log level, ALL:
- send components' build messages there,
- DEBUG log level is destined only for crosstool-NG debug messages,
- migrate sub-actions to use appropriate log levels;

Update the armeb-unknown-linux-gnu sample:
- it builds!
- uses gcc-4.0.4 and glibc-2.3.6,
- updated to latest config options set.

Fixes error

tst-pathopt.sh: /crosstool-0.20/build/powerpc-750-linux-gnu/gcc-2.95.3-glibc-2.2.2/build-glibc/elf/ld.so: cannot execute binary file

make[2]: *** [/crosstool-0.20/build/powerpc-750-linux-gnu/gcc-2.95.3-glibc-2.2.2/build-glibc/elf/tst-pathopt.out] Error 126

See also http://sources.redhat.com/ml/libc-alpha/2001-03/msg00113.html

===================================================================

RCS file: /cvs/glibc/libc/elf/Makefile,v

retrieving revision 1.196

retrieving revision 1.197

diff -u -r1.196 -r1.197

--- libc/elf/Makefile	2001/03/16 07:29:45	1.196

+++ libc/elf/Makefile	2001/03/25 04:57:51	1.197

@@ -246,8 +246,10 @@

 generated += $(addsuffix .so,$(strip $(modules-names)))

 ifeq (yes,$(build-shared))

+ifeq ($(cross-compiling),no)

 tests: $(objpfx)tst-pathopt.out

 endif

+endif

 $(objpfx)testobj1.so: $(libdl)

 $(objpfx)testobj1_1.so: $(objpfx)testobj1.so $(libdl)