configure: check for erf() and copysign()
authorJames Almer <jamrial@gmail.com>
Mon, 20 Jul 2015 07:04:46 +0000 (04:04 -0300)
committerJames Almer <jamrial@gmail.com>
Mon, 20 Jul 2015 16:18:09 +0000 (13:18 -0300)
commit736a3860555adb4e786c45c294c3ef7ccc8ba1f7
tree77dd63b4e8fa733f2dfbd72e8927f820d469f5bf
parente3851169eedce6c90534ca41edf3e05e2576453e
configure: check for erf() and copysign()

They are not available on some compilers.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
configure