[compiler-rt] [Compiler-rt][test] Fix circular link dependency between builtins and libc (PR #199482)

[Simon Tatham via llvm-commits]

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@@ -107,7 +107,9 @@ def get_libgcc_file_name():
     if config.target_os == "Haiku":
         config.substitutions.append(("%librt ", base_lib + " -lroot "))
     else:
-        config.substitutions.append(("%librt ", base_lib + " -lc -lm "))
+        config.substitutions.append(
+            ("%librt ", "-Wl,--start-group " + base_lib + " -lc -Wl,--end-group -lm ")
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statham-arm wrote:

D'oh. I wrote the same thing yesterday, but apparently forgot to press "submit review"!

https://github.com/llvm/llvm-project/pull/199482