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.

--- binutils/bfd/elf32-mips.c~

+++ binutils/bfd/elf32-mips.c

@@ -1611,7 +1611,9 @@

 /* The SVR4 MIPS ABI says that this should be 0x10000, and Linux uses

    page sizes of up to that limit, so we need to respect it.  */

-#define ELF_MAXPAGESIZE			0x10000

+/*#define ELF_MAXPAGESIZE			0x10000*/

+/* Use 4K to shrink the elf header.  NOT for general use! */

+#define ELF_MAXPAGESIZE			0x1000

 #define elf32_bed			elf32_tradbed

 /* Include the target file again for this target.  */

--- binutils/bfd/elfn32-mips.c~

+++ binutils/bfd/elfn32-mips.c

@@ -1976,7 +1976,9 @@

 /* The SVR4 MIPS ABI says that this should be 0x10000, and Linux uses

    page sizes of up to that limit, so we need to respect it.  */

-#define ELF_MAXPAGESIZE			0x10000

+/*#define ELF_MAXPAGESIZE			0x10000*/

+/* Use 4K to shrink the elf header.  NOT for general use! */

+#define ELF_MAXPAGESIZE			0x1000

 #define elf32_bed			elf32_tradbed

 /* Include the target file again for this target.  */