Only run uname if Perl's -f operator returns true for

'/bin/uname', '/usr/bin/uname', or '/bin/sh' - the existence of
these files gives us some hope that exec'ing uname will work,
and avoids an error on Windows builds.

Only run uname once (uname -a), collecting it into $$config{'uname'}
(previously configure.pl might run it as many as three times,
uname -s, uname -p, and uname -m).

Only submodels were being searched longest to shortest. Modify
guess_cpu_from_this to also search arch names and aliases in this
manner. This allows Config{'archname'} of 'x86_64-linux' to be
correctly detected as x86-64 (was being detected as x86, since
before the search was ordered by the Perl hash order).

0 files changed, 0 insertions, 0 deletions