[flang] [llvm] [flang] Use precompiled headers in Frontend, Lower, Parser, Semantics and Evaluate (PR #131137)

[Kajetan Puchalski via llvm-commits]

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@@ -286,6 +286,9 @@ if(LLVM_CCACHE_BUILD)
       endif()
       set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE_PROGRAM})
     else()
+      # Until a way to reliably configure ccache on Windows is found,
+      # disable precompiled headers for Windows + ccache builds
+      set(CMAKE_DISABLE_PRECOMPILE_HEADERS "ON")
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mrkajetanp wrote:

Good suggestion, thank you! Will do. 

https://github.com/llvm/llvm-project/pull/131137