Save the toolchain configuration to its own file, as an auto-extracting shell script:
- get rid of the 'extractconfig' action, it was cumbersome to use, and badly documented,
- introduce a skeleton for the config script,
- update auto-completion,
- document the config script.

/trunk/kconfig/kconfig.mk | 9 2 7 0 ++-------
/trunk/scripts/crosstool.sh | 6 5 1 0 +++++-
/trunk/docs/overview.txt | 21 9 12 0 +++++++++------------
/trunk/tools/toolchain-config.in | 8 8 0 0 ++++++++
/trunk/ct-ng.comp | 2 1 1 0 +-
5 files changed, 25 insertions(+), 21 deletions(-)

 --- gdb-6.1.1-dist/readline/configure	2003-05-27 18:29:47.000000000 -0500

 +++ gdb-6.1.1/readline/configure	2004-08-09 14:20:23.000000000 -0500

 @@ -6249,7 +6249,12 @@

  echo "$as_me:$LINENO: checking for mbstate_t" >&5

 +echo $ECHO_N "bash_cv_have_mbstate_t=$bash_cv_have_mbstate_t" >&6

  echo $ECHO_N "checking for mbstate_t... $ECHO_C" >&6

 +if test "${bash_cv_have_mbstate_t+set}" != set; then

 +  bash_cv_have_mbstate_t=yes

 +  echo $ECHO_N "WARNING!! forcing to yes!!! $ECHO_C" >&6

 +fi

  if test "${bash_cv_have_mbstate_t+set}" = set; then

    echo $ECHO_N "(cached) $ECHO_C" >&6

  else