2 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/extern/extern-main-issue-86110.rs b/src/test/ui/extern/extern-main-issue-86110.rs
new file mode 100644
index 00000000000..83af7a14ccc
--- /dev/null
+++ b/src/test/ui/extern/extern-main-issue-86110.rs
@@ -0,0 +1,7 @@
+// missing and missing2 exist to make sure that the error only happens on a `main` declaration
+extern "C" {
+    fn missing();
+    fn main();
+    //~^ the `main` function cannot be declared in an `extern` block
+    fn missing2();
+}
diff --git a/src/test/ui/extern/extern-main-issue-86110.stderr b/src/test/ui/extern/extern-main-issue-86110.stderr
new file mode 100644
index 00000000000..cd3de227dcf
--- /dev/null
+++ b/src/test/ui/extern/extern-main-issue-86110.stderr
@@ -0,0 +1,8 @@
+error: the `main` function cannot be declared in an `extern` block
+  --> $DIR/extern-main-issue-86110.rs:4:5
+   |
+LL |     fn main();
+   |     ^^^^^^^^^^
+
+error: aborting due to previous error
+