Introduction
============

Recipe to force i686 in case of i386 architecture.

Used to workaround issues with kumofs and messagepack:

configure: error: __sync_* atomic operations are not supported.

Note that gcc < 4.1 is not supported.

If you are using gcc >= 4.1 and the default target CPU architecture is "i386", try to
add CFLAGS="--march=i686" and CXXFLAGS="-march=i686" options to ./configure as follows:

  $ ./configure CFLAGS="-march=i686" CXXFLAGS="-march=i686"