From 9e3189f1f460cd141e849ff5f868bdc6d5268e4e Mon Sep 17 00:00:00 2001
From: emekoi <emekankurumeh@outlook.com>
Date: Wed, 3 Jul 2019 13:17:43 -0500
Subject: [PATCH] forward error code on non-exits

---
 std/build.zig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/std/build.zig b/std/build.zig
index 4ec8e5e854..425763da96 100644
--- a/std/build.zig
+++ b/std/build.zig
@@ -773,10 +773,10 @@ pub const Builder = struct {
                 }
                 return stdout.toOwnedSlice();
             },
-            else => {
+            .Signal, .Stopped, .Unknown => |code| {
                 warn("The following command terminated unexpectedly:\n");
                 printCmd(null, argv);
-                std.debug.panic("exec failed");
+                std.os.exit(@truncate(u8, code));
             },
         }