[flang-commits] [flang] [llvm] [CMake] Support using precompiled headers with ccache in flang (PR #136856)

[David Truby via flang-commits]

https://github.com/DavidTruby approved this pull request.

I think it's fine to go ahead with this while we try and fix Windows. 

I can take a look at the Windows issue when I have some time, but I suspect it's some clash with LLVM_OPTIMIZED_TABLEGEN as the buildbot failures are all in the sub-cmake command that is spawned by that. It might just be that we can disable ccache for that sub-cmake build (tablegen isn't very big) or something along those lines.

https://github.com/llvm/llvm-project/pull/136856