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(-)

Glibc does not build: asm/page.h not found

As of linux-2.6.25, asm/page.h is no longer exported.

This means the glibc up to and including 2.6 will not build against headers

exported from linux-2.6.25 and up. Starting with glibc-2.6.1, patches are

available that solves the issue. Switch to at least 2.6.1 if you can, or try

to backport the fix (should be quite easy).