Will fail to build in devel, but needed for accept llvm4 to Factory.
- Update to version 0.2.0+git.20170225:
* Fix build since llvm r286566 and require at least llvm 4.0
* Fix build since r286752.
* math: Add expm1 builtin function
* math: Add logb builtin
* math: Add native_rsqrt builtin function
* Add the correct prefixes to the cl_khr_fp64 pragma
* Move BufferPtr into the block where it it being used
* math: Add native_tan as wrapper to tan
* .gitignore: Ignore amdgcn-mesa object directory
* math: Implement sinh function
OBS-URL: https://build.opensuse.org/request/show/487675
OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/libclc?expand=0&rev=14
