From 87abd656dabdb97758413b7f4be5bda9be71e26e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Miku=C5=82a?= <mati865@gmail.com>
Date: Fri, 3 Jul 2020 21:00:14 +0200
Subject: [PATCH] Add test for #50176

---
 .../mingw-export-call-convention/Makefile                | 9 +++++++++
 .../mingw-export-call-convention/foo.rs                  | 4 ++++
 src/test/run-make-fulldeps/tools.mk                      | 1 +
 3 files changed, 14 insertions(+)
 create mode 100644 src/test/run-make-fulldeps/mingw-export-call-convention/Makefile
 create mode 100644 src/test/run-make-fulldeps/mingw-export-call-convention/foo.rs

diff --git a/src/test/run-make-fulldeps/mingw-export-call-convention/Makefile b/src/test/run-make-fulldeps/mingw-export-call-convention/Makefile
new file mode 100644
index 0000000000000..4a60059cc5441
--- /dev/null
+++ b/src/test/run-make-fulldeps/mingw-export-call-convention/Makefile
@@ -0,0 +1,9 @@
+include ../tools.mk
+
+# only-windows-gnu
+
+all:
+	$(RUSTC) foo.rs
+	# FIXME: we should make sure __stdcall calling convention is used here
+	# but that only works with LLD right now
+	nm -g "$(call IMPLIB,foo)" | $(CGREP) bar
diff --git a/src/test/run-make-fulldeps/mingw-export-call-convention/foo.rs b/src/test/run-make-fulldeps/mingw-export-call-convention/foo.rs
new file mode 100644
index 0000000000000..1fec00311ef06
--- /dev/null
+++ b/src/test/run-make-fulldeps/mingw-export-call-convention/foo.rs
@@ -0,0 +1,4 @@
+#![crate_type = "cdylib"]
+
+#[no_mangle]
+pub extern "system" fn bar() {}
diff --git a/src/test/run-make-fulldeps/tools.mk b/src/test/run-make-fulldeps/tools.mk
index 04bf78ed2105b..381f14a0d382a 100644
--- a/src/test/run-make-fulldeps/tools.mk
+++ b/src/test/run-make-fulldeps/tools.mk
@@ -48,6 +48,7 @@ ifdef IS_MSVC
 STATICLIB = $(TMPDIR)/$(1).lib
 STATICLIB_GLOB = $(1)*.lib
 else
+IMPLIB = $(TMPDIR)/lib$(1).dll.a
 STATICLIB = $(TMPDIR)/lib$(1).a
 STATICLIB_GLOB = lib$(1)*.a
 endif