From 847d1ffbe95729f4e22db022298a7b22c94ad18b Mon Sep 17 00:00:00 2001
From: "Jonathan A. Kollasch" <jakllsch@kollasch.net>
Date: Thu, 31 Aug 2017 09:36:10 -0500
Subject: [PATCH] bootstrap: avoid m4 -B for NetBSD-built sparc64 OpenSSL

---
 src/bootstrap/native.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/bootstrap/native.rs b/src/bootstrap/native.rs
index ee00ee57e94..b3929516470 100644
--- a/src/bootstrap/native.rs
+++ b/src/bootstrap/native.rs
@@ -439,6 +439,11 @@ fn run(self, builder: &Builder) {
         if target == "sparc64-unknown-netbsd" {
             // Need -m64 to get assembly generated correctly for sparc64.
             configure.arg("-m64");
+            if build.build.contains("netbsd") {
+                // Disable sparc64 asm on NetBSD builders, it uses
+                // m4(1)'s -B flag, which NetBSD m4 does not support.
+                configure.arg("no-asm");
+            }
         }
         // Make PIE binaries
         // Non-PIE linker support was removed in Lollipop