[llvm] [Flang] explicitly link the pthread library when building shared flang-rt. (PR #129956)

[Daniel Chen via llvm-commits]

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@@ -245,6 +245,8 @@ check_cxx_compiler_flag("-UTESTFLAG" FLANG_RT_SUPPORTS_UNDEFINE_FLAG)
 # Check whether -fno-lto is supported.
 check_cxx_compiler_flag(-fno-lto FLANG_RT_HAS_FNO_LTO_FLAG)
 
+# Search for pthread library
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DanielCChen wrote:

Sure. I will update the comments.
Thanks for the pointer to the blog!

https://github.com/llvm/llvm-project/pull/129956