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.

 #!/bin/bash

 # Parses all samples on the command line, and for each of them, prints

 # the versions of the main tools

 # GREP_OPTIONS screws things up.

 export GREP_OPTIONS=

 # Dump a single sample

 dump_single_sample() {

     local width="$1"

     local sample="$2"

     . "${CT_TOP_DIR}/samples/${sample}/crosstool.config"

     # Build the components string

     local str="${CT_KERNEL}-${CT_KERNEL_VERSION}"

     str="${str} binutils-${CT_BINUTILS_VERSION}"

     str="${str} ${CT_CC}-${CT_CC_VERSION}"

     str="${str} ${CT_LIBC}-${CT_LIBC_VERSION}"

     printf "  %-*s - %s\n" ${width} "${sample}" "${str}"

 }

 # Get largest sample width

 width=0

 for sample in "${@}"; do

     [ ${#sample} -gt ${width} ] && width=${#sample}

 done

 for sample in "${@}"; do

     ( dump_single_sample ${width} "${sample}" )

 done