- option only available to cmake, scons and make have this enabled always.
- without this clang/llvm can compile blender
- this was the second biggest internal lib, 192mb -> 172mb for all blenders libs (with debug flags), so gives some speedup to linking.
* Convert all code to use new functions.
* Branch maintainers may want to skip this commit, and run this
conversion script instead, if they use a lot of math functions
in new code:
http://www.pasteall.org/9052/python
