1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/proc-macro/no-mangle-in-proc-macro-issue-111888.rs b/tests/ui/proc-macro/no-mangle-in-proc-macro-issue-111888.rs
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index 000000000..4e5208e50
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+++ b/tests/ui/proc-macro/no-mangle-in-proc-macro-issue-111888.rs
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+// build-pass
+// force-host
+// no-prefer-dynamic
+// aux-build:exports_no_mangle.rs
+#![crate_type = "proc-macro"]
+
+// Issue #111888: this proc-macro crate imports another crate that itself
+// exports a no_mangle function.
+//
+// That combination was broken for a period of time, because:
+//
+// In PR #99944 we *stopped* exporting no_mangle symbols from
+// proc-macro crates. The constructed linker version script still referred
+// to them, but resolving that discrepancy was left as a FIXME in the code.
+//
+// In PR #108017 we started telling the linker to check (via the
+// `--no-undefined-version` linker invocation flag) that every symbol referenced
+// in the "linker version script" is actually present in the linker input. So
+// the unresolved discrepancy from #99944 started surfacing as a compile-time
+// error.
+
+extern crate exports_no_mangle;