Introduce four new ARCH specific variables that CT_DoArchValues can set if they want:
- CT_ARCH_CC_CORE_EXTRA_CONFIG
- CT_ARCH_CC_EXTRA_CONFIG
- CT_ARCH_TARGET_CLFAGS
- CT_ARCH_TARGET_LDFLAGS
This will hopefully enable architectures to specify specific flags.
PowerPC will need them to introduce SPE (coming RSN).

/trunk/scripts/crosstool.sh | 2 2 0 0 ++
/trunk/scripts/functions | 4 2 2 0 ++--
/trunk/docs/overview.txt | 45 22 23 0 ++++++++++++++++++++++-----------------------
/trunk/config/target.in | 10 10 0 0 ++++++++++
4 files changed, 36 insertions(+), 25 deletions(-)

# GMP options

choice

    bool

    prompt "GMP version"

config GMP_V_4_2_2

    bool

    prompt "4.2.2"

# CT_INSERT_VERSION_ABOVE

# Don't remove above line!

endchoice

config GMP_VERSION

    string

    default "4.2.2" if GMP_V_4_2_2

# CT_INSERT_VERSION_STRING_ABOVE

# Don't remove above line!

config GMP_CHECK

    bool

    prompt "Check GMP"

    default y

    help

      It is highly recommended that 'make check' is run against the newly built

      GMP library. See http://gmplib.org/