Set the execute bit on generated script at build time, not install time.
Do not advertise "make install" when ./configure-d with "--local".

-------- diffstat follows --------
/trunk/configure | 8 5 3 0 +++++---
/trunk/Makefile.in | 10 3 7 0 +++-------
2 files changed, 8 insertions(+), 10 deletions(-)

 # Compute x86_64-specific values

 CT_DoArchTupleValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}"

 }