- Update to v1.11.4.1 to fix build with LLVM10.
- Remove incorporated patch:
0001-Generalize-lookup-of-stdosl.h-in-install-directory-a.patch
Added patches from git:
0001-Some-SPI-build-fixes-for-finding-the-right-llvm.patch and
0001-LLVM-10-odds-and-ends-1135.patch.
- Created osl-pkgconfig-versions.patch to fix pc file's version
fields. Upstreamed along with workaround for new libclang-cpp in issue #1155
Created osl-oslimageio-soname.patch to keep the library build in line with v1.x.