Add support for building PPL:
- PPL will be needed to correctly build gcc-4.4+ for the
GRAPHITE loop optimisation

-------- diffstat follows --------
/trunk/scripts/build/companion_libs/ppl.sh | 66 66 0 0 ++++++++++++++++++++++++++++++++++++
/trunk/scripts/build/companion_libs/gmp.sh | 24 19 5 0 ++++++++++---
/trunk/scripts/addToolVersion.sh | 3 2 1 0 +-
/trunk/scripts/crosstool-NG.sh.in | 3 3 0 0 ++
/trunk/steps.mk | 1 1 0 0 +
/trunk/config/companion_libs/ppl.in | 33 33 0 0 ++++++++++++++++++
/trunk/config/companion_libs.in | 22 19 3 0 ++++++++++--
7 files changed, 143 insertions(+), 9 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!