1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/imports/extern-prelude-extern-crate-cfg.rs b/tests/ui/imports/extern-prelude-extern-crate-cfg.rs
new file mode 100644
index 000000000..cfae08fcc
--- /dev/null
+++ b/tests/ui/imports/extern-prelude-extern-crate-cfg.rs
@@ -0,0 +1,16 @@
+// build-pass (FIXME(62277): could be check-pass?)
+// compile-flags:--cfg my_feature
+
+#![no_std]
+
+#[cfg(my_feature)]
+extern crate std;
+
+mod m {
+    #[cfg(my_feature)]
+    fn conditional() {
+        std::vec::Vec::<u8>::new(); // OK
+    }
+}
+
+fn main() {}