OpenSubdiv-3.4.3-bp153.1.19

- Update to version 3.4.3 (April 2020):
  + Changes
  * GLEW is no longer required by default (GitHub #1183 #1184)
  * Removed false Ptex link dependency from libosdCPU (GitHub
    [#1174])
  * Removed false GLFW link dependency from DX11 and Metal
    examples (GitHub #1178)
  * Removed link dependency on unused TBB libraries (GitHub
    [#1064])
  * Added option to disable building of dynamic shared libraries
    (GitHub #1169)
  * Added new tutorial for Far::LimitStencilTable (GitHub #1176)
  * Updated use of EXT_direct_state_access to
    ARB_direct_state_access (GitHub #1184)
  * Fixed C++ strict aliasing warnings (GitHub #1182)
  * Fixed MSVC warnings in example code (GitHub #1158 #1172)
  * Fixed compatibility with Visual Studio 2019 (GitHub #1173
    [#1189])
  * Fixed CMake CMP0054 warnings (GitHub #1180)
  * Added prefix to OpenSubdiv CMake macros (GitHub #1157)
  * Moved utilities in examples/common to regression/common
    (GitHub #1167)
  * Minor fixes to Far tutorials (GitHub #1175 #1177)
  * Switched to Azure Pipelines for continuous integration
    testing instead of Travis-CI and AppVeyor (GitHub #1168
    [#1190])
  + Bug Fixes
  * Fixed selective boundary interpolation for case
    Sdc::Options::VTX_BOUNDARY_NONE (GitHub #1170 #1171)
  * Fixed static library linking to address missing symbols
    (GitHub #1192)
  * Additional fixes for dynamic and static linking (GitHub
    [#1193])
- Add workaround to fix linking libosdGPU, which is missing -ldl

- Use tbb-devel BuildRequires instead of cmake(TBB), the latter is not
  available in Leap 15.x

- Avoid forcing SSE/SSE2 on %ix86, it is not guaranteed to exist.
- Trim bias and redundancies from descriptions.
- RPM group/category fixes.

- version 3.4.0: initial build