[clang] [compiler-rt] [llvm] Reapply "Skipping host target exports during cross-compilation" (#210… (PR #210496)

[via cfe-commits]

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@@ -313,6 +313,16 @@ macro(load_llvm_config)
       "You are not using the monorepo layout. This configuration is DEPRECATED.")
   endif()
 
+  # Exports from LLVM and Clang may contain shared libraries. When targeting
+  # baremetal platforms that lacks shared library support, importing such
+  # exports unrestrictedly will trigger cmake errors. Set
+  # LLVM_OMIT_EXPORTS_FROM_CONFIG flag to skip importing these exports
+  # when the target platform does not support shared library.
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zeroomega wrote:

Done.

https://github.com/llvm/llvm-project/pull/210496