CMake: Link libm to test binaries if available.
If libm is available link it to test binaries which will otherwise fail to compile. Tested on FreeBSD 13-STABLE. Signed-off-by: Daniel Engberg <firstname.lastname@example.org> Signed-off-by: Ralph Giles <email@example.com>
libm in 1 minute and 48 seconds (queued for 5 seconds)2 jobs for