[libcxx-commits] [libcxx] [libc++][modules] Adds std.compat module. (PR #71438)

[Mark de Wever via libcxx-commits]

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@@ -67,3 +67,17 @@ if (
         "%{link_flags}",
         os.path.join(build, "libc++std.a"),
     )
+
+    config.substitutions = appendToSubstitution(
+        config.substitutions,
+        "%{compile_flags}",
+        "-fprebuilt-module-path="
+        + os.path.join(
+            config.test_exec_root, "__config_module__/CMakeFiles/std.compat.dir"
+        ),
+    )
+    config.substitutions = appendToSubstitution(
+        config.substitutions,
+        "%{link_flags}",
+        os.path.join(build, "libc++std.compat.a"),
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mordante wrote:

#76083 removes this code and its replacement #76246 only creates `pcm` files and not libraries. So that would resolve this issue.

https://github.com/llvm/llvm-project/pull/71438