From 588d2862d90b65b7227975ecd3c8dfdaabbdefc6 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Sat, 30 Sep 2017 15:47:46 -0400
Subject: [PATCH] workaround for invalid binary created on windows

when target native features are used.

See #508
---
 src/codegen.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/codegen.cpp b/src/codegen.cpp
index 5498647758..3860dab0b6 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -4959,8 +4959,16 @@ static void init(CodeGen *g) {
     const char *target_specific_cpu_args;
     const char *target_specific_features;
     if (g->is_native_target) {
-        target_specific_cpu_args = ZigLLVMGetHostCPUName();
-        target_specific_features = ZigLLVMGetNativeFeatures();
+        // LLVM creates invalid binaries on Windows sometimes.
+        // See https://github.com/zig-lang/zig/issues/508
+        // As a workaround we do not use target native features on Windows.
+        if (g->zig_target.os == ZigLLVM_Win32) {
+            target_specific_cpu_args = "";
+            target_specific_features = "";
+        } else {
+            target_specific_cpu_args = ZigLLVMGetHostCPUName();
+            target_specific_features = ZigLLVMGetNativeFeatures();
+        }
     } else {
         target_specific_cpu_args = "";
         target_specific_features = "";