From 1a61a9d4bf37183282de8a09431ed1baaf049999 Mon Sep 17 00:00:00 2001
From: Michael Freundorfer <contact@mfreundorfercg.com>
Date: Fri, 27 Nov 2020 19:21:29 +0100
Subject: [PATCH] Fix WindowsDynLib.openW trying to strip the \??\ prefix when
 it does not exist

---
 lib/std/dynamic_library.zig | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/std/dynamic_library.zig b/lib/std/dynamic_library.zig
index aca6cf958c..c1123f6eb7 100644
--- a/lib/std/dynamic_library.zig
+++ b/lib/std/dynamic_library.zig
@@ -344,9 +344,14 @@ pub const WindowsDynLib = struct {
     }
 
     pub fn openW(path_w: [*:0]const u16) !WindowsDynLib {
-        return WindowsDynLib{
+        var offset: usize = 0;
+        if (path_w[0] == '\\' and path_w[1] == '?' and path_w[2] == '?' and path_w[3] == '\\') {
             // + 4 to skip over the \??\
-            .dll = try windows.LoadLibraryW(path_w + 4),
+            offset = 4;
+        }
+
+        return WindowsDynLib{
+            .dll = try windows.LoadLibraryW(path_w + offset),
         };
     }