Rationalise ./configure
- borrow a lot of ideas from Michael ABBOTT ( http://sourceware.org/ml/crossgcc/2008-12/msg00030.html )
- should be conforming to POSIX 1003.1-2008, non compliance due to bashsims is to be considered a bug
- as a result, it now works with dash
- make a little easier to read in some places
- enforce 4-space indentation
- get rid of futile 'return $?'
- quote all variables assignments
- save and restore IFS prior to and after using alternate values
- simplify the TOOLS_TO_CHECK listing

What's left:
- provide a mean to actually _compare_ version numbers
- change the TOOLS_TO_CHECK pattern style to be able to use '|' in regexp

/trunk/configure | 243 127 116 0 ++++++++++++++++++++++++++++++++------------------------------
1 file changed, 127 insertions(+), 116 deletions(-)

 This is the README for crosstool-NG

 To get you started, just enter:

   ./configure --help

 You can find a (terse and WIP) documentation in docs/overview.txt.

 You can also point your browser to

   http://ymorin.is-a-geek.org/dokuwiki/projects/crosstool

 If you need to send a bug report or a patch, please send a mail with subject

 prefixed with "[CT_NG]" with the following destinations:

     TO: yann.morin.1998 (at) anciens.enib.fr

     CC: crossgcc (at) sourceware.org

 The people that helped are listed in docs/CREDITS. Many thanks to them! :-)

 The list of known issues is listed in docs/known-issues.txt.

 Aloha!