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.

 #

 # Submitted:

 # 

 # Robert Schwebel, 2003-12-22

 #  

 # Error:

 # 

 # ... undefined reference to mcount_internal ...

 # 

 # Description: 

 #

 # State:

 # 

 # unknown

 #

 --- glibc-2.3.2/sysdeps/arm/machine-gmon.h	2001-07-07 21:21:19.000000000 +0200

 +++ glibc-2.3.2-ptx/sysdeps/arm/machine-gmon.h	2003-12-21 23:58:26.000000000 +0100

 @@ -32,10 +32,8 @@

  weak_alias (_mcount, mcount)

  #endif

 -static void mcount_internal (u_long frompc, u_long selfpc);

 -

  #define _MCOUNT_DECL(frompc, selfpc) \

 -static void mcount_internal (u_long frompc, u_long selfpc)

 +void mcount_internal (u_long frompc, u_long selfpc)

  /* This macro/func MUST save r0, r1 because the compiler inserts

  	blind calls to _mount(), ignoring the fact that _mcount may