wrong include path in cmake file
In the 13.1.1-2
version, the installed /usr/lib/cmake/glslang/glslang-targets.cmake
file references the nonexistent /usr/include/External
path.
This very own repo still has a related and now unused glslang-11.13.0-cmake_include_dirs.patch
file.
Potential backport: https://github.com/KhronosGroup/glslang/pull/3420