From eea8b10463b944dae5434e748c9a5b67c2287bea Mon Sep 17 00:00:00 2001
From: syscall0 <syscall0@protonmail.com>
Date: Sun, 24 Nov 2019 19:37:56 +0300
Subject: [PATCH] Call DllMain entry point if declared

---
 lib/std/special/start_lib.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/std/special/start_lib.zig b/lib/std/special/start_lib.zig
index 701eee389d..994bc14fd5 100644
--- a/lib/std/special/start_lib.zig
+++ b/lib/std/special/start_lib.zig
@@ -1,5 +1,6 @@
 // This file is included in the compilation unit when exporting a DLL on windows.
 
+const root = @import("root");
 const std = @import("std");
 const builtin = @import("builtin");
 
@@ -12,5 +13,9 @@ stdcallcc fn _DllMainCRTStartup(
     fdwReason: std.os.windows.DWORD,
     lpReserved: std.os.windows.LPVOID,
 ) std.os.windows.BOOL {
+    if (@hasDecl(root, "DllMain")) {
+        return root.DllMain(hinstDLL, fdwReason, lpReserved);
+    }
+
     return std.os.windows.TRUE;
 }