From 4e2a5e6b1372ca22735a8f73a56c9de417460722 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Mon, 16 Oct 2017 01:16:51 -0400
Subject: [PATCH] fix regression on posix from previous commit

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

diff --git a/std/build.zig b/std/build.zig
index 4004a4db0e..edbe5c8eae 100644
--- a/std/build.zig
+++ b/std/build.zig
@@ -641,11 +641,11 @@ pub const Builder = struct {
         if (builtin.environ == builtin.Environ.msvc) {
             return "cl.exe";
         } else {
-            return os.getEnvVarOwned(self.builder.allocator, "CC") %% |err| {
+            return os.getEnvVarOwned(self.allocator, "CC") %% |err| {
                 if (err == error.EnvironmentVariableNotFound) {
                     ([]const u8)("cc")
                 } else {
-                    return err
+                    debug.panic("Unable to get environment variable: {}", err);
                 }
             };
         }