missing dependency on slang-glsl-module-generated.h

[lunarpapillo]

While attempting to build for the Vulkan SDK, among the other sporadic cross-platform build failures we've been seeing is:

C:\j\msdk1\build\slang\repo\source\slang-glsl-module\slang-embedded-glsl-module.cpp(6,10): fatal error C1083: Cannot open include file: 'slang-glsl-module-generated.h': No such file or directory [C:\j\msdk1\build\slang\repo\dbuild\source\slang-glsl-module\slang-glsl-module.vcxproj]

This appears only infrequently in our builds (other issues, like #6580 , are much more frequent), but suggests that there's a missing dependency causing a race condition between creating slang-glsl-module-generated.h and its consumers.

[expipiplus1]

This is so weird,

the only place this header is used is in source/slang-glsl-module/slang-embedded-glsl-module.cpp which is used in source/slang-glsl-module/CMakeLists.txt to generate the slang-glsl-module target. This target has an explicit dependency on the generate_core_module_headers custom target which depends on that header.

Are you able to reproduce this with a single threaded build or with a different cmake generator?