From f9e4f0f4946c81efb847238012a403d079a596ee Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Tue, 8 Oct 2019 09:45:24 -0700
Subject: [PATCH] Add test for --extern alloc=librustc.rlib

---
 src/test/run-make-fulldeps/extern-flag-fun/Makefile          | 3 +++
 src/test/run-make-fulldeps/extern-flag-fun/gated_unstable.rs | 3 +++
 src/test/run-make-fulldeps/extern-flag-fun/rustc.rs          | 1 +
 3 files changed, 7 insertions(+)
 create mode 100644 src/test/run-make-fulldeps/extern-flag-fun/gated_unstable.rs
 create mode 100644 src/test/run-make-fulldeps/extern-flag-fun/rustc.rs

diff --git a/src/test/run-make-fulldeps/extern-flag-fun/Makefile b/src/test/run-make-fulldeps/extern-flag-fun/Makefile
index 7f54d6ea3bc..38d1d5bb848 100644
--- a/src/test/run-make-fulldeps/extern-flag-fun/Makefile
+++ b/src/test/run-make-fulldeps/extern-flag-fun/Makefile
@@ -14,3 +14,6 @@ all:
 		--extern bar=$(TMPDIR)/libbar.rlib \
 		--extern bar=$(TMPDIR)/libbar-a.rlib
 	$(RUSTC) foo.rs --extern bar=$(TMPDIR)/libbar.rlib
+	# Try to be sneaky and load a private crate from with a non-private name.
+	$(RUSTC) rustc.rs -Zforce-unstable-if-unmarked --crate-type=rlib
+	$(RUSTC) gated_unstable.rs --extern alloc=$(TMPDIR)/librustc.rlib 2>&1 | $(CGREP) 'rustc_private'
diff --git a/src/test/run-make-fulldeps/extern-flag-fun/gated_unstable.rs b/src/test/run-make-fulldeps/extern-flag-fun/gated_unstable.rs
new file mode 100644
index 00000000000..03600c830ff
--- /dev/null
+++ b/src/test/run-make-fulldeps/extern-flag-fun/gated_unstable.rs
@@ -0,0 +1,3 @@
+extern crate alloc;
+
+fn main() {}
diff --git a/src/test/run-make-fulldeps/extern-flag-fun/rustc.rs b/src/test/run-make-fulldeps/extern-flag-fun/rustc.rs
new file mode 100644
index 00000000000..b76b4321d62
--- /dev/null
+++ b/src/test/run-make-fulldeps/extern-flag-fun/rustc.rs
@@ -0,0 +1 @@
+pub fn foo() {}