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(-)

 # Compute IA-64-specific values

 CT_DoArchTupleValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}${target_endian_el}"

     # Override CFLAGS for endianness:

     case "${CT_ARCH_BE},${CT_ARCH_LE}" in

         y,) CT_ARCH_ENDIAN_CFLAG="-EB";;

         ,y) CT_ARCH_ENDIAN_CFLAG="-EL";;

     esac

 }