[libc-commits] [libc] [libc] Generate a stub for libpthread.a (PR #200908)

[Alexey Samsonov via libc-commits]

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@@ -56,6 +56,29 @@ foreach(archive IN ZIP_LISTS
   endif()
 endforeach()
 
+# Add empty archive libraries for compatibility with systems expecting certain
+# bits of libc to be located in separate files (e.g. libpthread).
+if(LLVM_LIBC_FULL_BUILD)
+  set(dummy_source "${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp")
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vonosmas wrote:

I experimented a bit, and if we restrict the target OS to Linux, we can probably just use direct "ar cqs" invocation through custom command, as suggested by @frobtech . Updated this PR. @kaladron  - LMK if you prefer that version instead!

https://github.com/llvm/llvm-project/pull/200908