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

In file included from include/asm/current.h:4,

                 from include/linux/wait.h:27,

                 from include/asm/semaphore.h:15,

                 from include/linux/sched.h:19,

                 from arch/ppc64/kernel/asm-offsets.c:18:

include/asm/paca.h:25: error: array type has incomplete element type

make[1]: *** [arch/ppc64/kernel/asm-offsets.s] Error 1

when building with gcc-4.0

--- linux-2.6.11.3/include/asm-ppc64/paca.h.old	Fri Mar 18 13:23:40 2005

+++ linux-2.6.11.3/include/asm-ppc64/paca.h	Fri Mar 18 13:24:04 2005

@@ -22,7 +22,6 @@

 #include	<asm/iSeries/ItLpRegSave.h>

 #include	<asm/mmu.h>

-extern struct paca_struct paca[];

 register struct paca_struct *local_paca asm("r13");

 #define get_paca()	local_paca

@@ -114,5 +113,7 @@

 	struct ItLpRegSave reg_save;

 #endif

 };

+

+extern struct paca_struct paca[];

 #endif /* _PPC64_PACA_H */