1.4:
- mark the i686-nptl-linux-gnu sample as being broken.
- update known issues about seemingly native toolchains
not building, using that sample as example.

-------- diffstat follows --------
/branches/1.4/docs/known-issues.txt | 5 4 1 0 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

# 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