From dfa70a483aad438cad826c414a5d710bab6ecf49 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Tue, 6 Oct 2020 18:43:12 -0400
Subject: [PATCH] [gn build] manually port 5e4409f308177

---
 llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn b/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
index acbd66a..1ef33cd 100644
--- a/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
@@ -213,7 +213,6 @@ write_cmake_config("config") {
       "HAVE_SIGALTSTACK=",
       "HAVE_STRERROR_R=",
       "HAVE_SYSCONF=",
-      "HAVE_SYSEXITS_H=",
       "HAVE_SYS_IOCTL_H=",
       "HAVE_SYS_MMAN_H=",
       "HAVE_SYS_PARAM_H=",
@@ -250,7 +249,6 @@ write_cmake_config("config") {
       "HAVE_SIGALTSTACK=1",
       "HAVE_STRERROR_R=1",
       "HAVE_SYSCONF=1",
-      "HAVE_SYSEXITS_H=1",
       "HAVE_SYS_IOCTL_H=1",
       "HAVE_SYS_MMAN_H=1",
       "HAVE_SYS_PARAM_H=1",
@@ -339,9 +337,15 @@ write_cmake_config("llvm-config") {
   ]
 
   if (current_os == "win") {
-    values += [ "LLVM_ON_UNIX=" ]
+    values += [
+      "HAVE_SYSEXITS_H=",
+      "LLVM_ON_UNIX=",
+    ]
   } else {
-    values += [ "LLVM_ON_UNIX=1" ]
+    values += [
+      "HAVE_SYSEXITS_H=1",
+      "LLVM_ON_UNIX=1",
+    ]
   }
 
   if (llvm_enable_threads) {
-- 
2.7.4