From 42167b94a3d749bae3f89ae73baa5ee6edd8ae9a Mon Sep 17 00:00:00 2001
From: "Felix S. Klock II" <pnkfelix@pnkfx.org>
Date: Thu, 13 Dec 2018 11:55:43 +0100
Subject: [PATCH] fix issue 54153 by ignoring issue-18804 test on windows/mac.

As a drive-by, add `-C no-prepopulate-passes` as suggested by nikic.
---
 src/test/run-pass/issues/issue-18804/main.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/test/run-pass/issues/issue-18804/main.rs b/src/test/run-pass/issues/issue-18804/main.rs
index 2abcd4b7ba99c..23c02f18862ee 100644
--- a/src/test/run-pass/issues/issue-18804/main.rs
+++ b/src/test/run-pass/issues/issue-18804/main.rs
@@ -14,9 +14,14 @@
 
 // ignore-asmjs no weak symbol support
 // ignore-emscripten no weak symbol support
+// ignore-windows no extern_weak linkage
+// ignore-macos no extern_weak linkage
 
 // aux-build:lib.rs
 
+// rust-lang/rust#56772: nikic says we need this to be proper test.
+// compile-flags: -C no-prepopulate-passes
+
 extern crate lib;
 
 fn main() {