Don't define C99 math functions on OpenSolaris (Solaris 11),
which still ships GCC 3.4.3. This fixes redefinition warnings.
Spotted by Palle Lyckegaard.
Signed-off-by: Andreas Färber <afaerber@opensolaris.org>
Cc: Palle Lyckegaard <palle@lyckegaard.dk>
Cc: Ben Taylor <bentaylor.solx86@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
be45f06826