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From Daniel Lescohier <daniel.lescoh...@cbsi.com>
Subject nonportable-atomics configure.in setting
Date Wed, 04 Dec 2013 00:22:42 GMT
I see this in configure.in:

AC_ARG_ENABLE(nonportable-atomics,
[  --enable-nonportable-atomics  Use optimized atomic code which may
produce nonportable binaries],
[if test $enableval = yes; then
   force_generic_atomics=no
 else
   force_generic_atomics=yes
 fi
],
[case $host_cpu in
   i[[456]]86) force_generic_atomics=yes ;;
   *) force_generic_atomics=no ;;
esac
])

I was wondering why the three host_cpus i486, i586, and i686 have special
treatment for the default setting as compared to all other cpu
architectures?

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