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(-)

# x86_64 specific options

config ARCH_x86_64

    select ARCH_64

    select ARCH_SUPPORT_ARCH

    select ARCH_SUPPORT_CPU

    select ARCH_SUPPORT_TUNE

    help

      The x86_64 architecture, as defined by:

        http://www.amd.com/us-en/Processors/DevelopWithAMD/0,,30_2252_875_7044,00.html