From a391a82e4987728e30bf5c27be5631f9d4db530f Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Fri, 21 Feb 2020 01:58:40 -0500
Subject: [PATCH] fix zig build adding invalid cli args

---
 lib/std/build.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/std/build.zig b/lib/std/build.zig
index beb89ab7ce..43cc4a2150 100644
--- a/lib/std/build.zig
+++ b/lib/std/build.zig
@@ -1921,7 +1921,7 @@ pub const LibExeObjStep = struct {
                     }
                 } else {
                     var mcpu_buffer = try std.Buffer.init(builder.allocator, "-mcpu=");
-                    try zig_args.append(cross.cpu.model.name);
+                    try mcpu_buffer.append(cross.cpu.model.name);
 
                     for (all_features) |feature, i_usize| {
                         const i = @intCast(Target.Cpu.Feature.Set.Index, i_usize);