diff --git a/core/path/filepath/walk.odin b/core/path/filepath/walk.odin
index dad63cc09..9ba3165dc 100644
--- a/core/path/filepath/walk.odin
+++ b/core/path/filepath/walk.odin
@@ -14,7 +14,7 @@ import "core:slice"
 // The sole exception is if 'skip_dir' is returned as true:
 // 	when 'skip_dir' is invoked on a directory. 'walk' skips directory contents
 // 	when 'skip_dir' is invoked on a non-directory. 'walk' skips the remaining files in the containing directory
-Walk_Proc :: #type proc(info: os.File_Info, in_err: os.Errno) -> (err: os.Errno, skip_dir: bool)
+Walk_Proc :: #type proc(info: os.File_Info, in_err: os.Errno, user_data: rawptr) -> (err: os.Errno, skip_dir: bool)
 
 // walk walks the file tree rooted at 'root', calling 'walk_proc' for each file or directory in the tree, including 'root'
 // All errors that happen visiting files and directories are filtered by walk_proc
@@ -22,28 +22,28 @@ Walk_Proc :: #type proc(info: os.File_Info, in_err: os.Errno) -> (err: os.Errno,
 // NOTE: Walking large directories can be inefficient due to the lexical sort
 // NOTE: walk does not follow symbolic links
 // NOTE: os.File_Info uses the 'context.temp_allocator' to allocate, and will delete when it is done
-walk :: proc(root: string, walk_proc: Walk_Proc) -> os.Errno {
+walk :: proc(root: string, walk_proc: Walk_Proc, user_data: rawptr) -> os.Errno {
 	info, err := os.lstat(root, context.temp_allocator)
 	defer os.file_info_delete(info, context.temp_allocator)
 
 	skip_dir: bool
 	if err != 0 {
-		err, skip_dir = walk_proc(info, err)
+		err, skip_dir = walk_proc(info, err, user_data)
 	} else {
-		err, skip_dir = _walk(info, walk_proc)
+		err, skip_dir = _walk(info, walk_proc, user_data)
 	}
 	return 0 if skip_dir else err
 }
 
 
 @(private)
-_walk :: proc(info: os.File_Info, walk_proc: Walk_Proc) -> (err: os.Errno, skip_dir: bool) {
+_walk :: proc(info: os.File_Info, walk_proc: Walk_Proc, user_data: rawptr) -> (err: os.Errno, skip_dir: bool) {
 	if !info.is_dir {
 		if info.fullpath == "" && info.name == "" {
 			// ignore empty things
 			return
 		}
-		return walk_proc(info, 0)
+		return walk_proc(info, 0, user_data)
 	}
 
 	fis: []os.File_Info
@@ -51,14 +51,14 @@ _walk :: proc(info: os.File_Info, walk_proc: Walk_Proc) -> (err: os.Errno, skip_
 	fis, err = read_dir(info.fullpath, context.temp_allocator)
 	defer os.file_info_slice_delete(fis, context.temp_allocator)
 
-	err1, skip_dir = walk_proc(info, err)
+	err1, skip_dir = walk_proc(info, err, user_data)
 	if err != 0 || err1 != 0 || skip_dir {
 		err = err1
 		return
 	}
 
 	for fi in fis {
-		err, skip_dir = _walk(fi, walk_proc)
+		err, skip_dir = _walk(fi, walk_proc, user_data)
 		if err != 0 || skip_dir {
 			if !fi.is_dir || !skip_dir {
 				return
diff --git a/core/sys/windows/wgl.odin b/core/sys/windows/wgl.odin
index 150358d01..77cff2fa9 100644
--- a/core/sys/windows/wgl.odin
+++ b/core/sys/windows/wgl.odin
@@ -85,3 +85,15 @@ foreign Opengl32 {
 	wglUseFontBitmaps         :: proc(hdc: HDC, first, count, list_base: DWORD) -> BOOL ---
 	wglUseFontOutlines        :: proc(hdc: HDC, first, count, list_base: DWORD, deviation, extrusion: f32, format: c.int, gmf: LPGLYPHMETRICSFLOAT) -> BOOL ---
 }
+
+// Used by vendor:OpenGL
+// https://www.khronos.org/opengl/wiki/Load_OpenGL_Functions#Windows
+gl_set_proc_address :: proc(p: rawptr, name: cstring) {
+	func := wglGetProcAddress(name)
+	switch uintptr(func) {
+	case 0, 1, 2, 3, ~uintptr(0):
+		module := LoadLibraryW(L("opengl32.dll"))
+		func = GetProcAddress(module, name)
+	}
+	(^rawptr)(p)^ = func
+}
diff --git a/vendor/OpenGL/README.md b/vendor/OpenGL/README.md
index 928d5eb5d..3f5f05c81 100644
--- a/vendor/OpenGL/README.md
+++ b/vendor/OpenGL/README.md
@@ -7,17 +7,11 @@ Includes procedures to load OpenGL function pointers. Currently only supports th
 ```go
 gl.load_up_to(4, 5, proc(p: rawptr, name: cstring) do (cast(^rawptr)p)^ = glfw.GetProcAddress(name); );
 ```
-[odin-glfw](https://github.com/vassvik/odin-glfw) also provides a useful helper you can pass straight to `gl.load_up_to`:
+`vendor:glfw` also provides a useful helper you can pass straight to `gl.load_up_to`:
 ```go
 gl.load_up_to(4, 5, glfw.gl_set_proc_address);
 ```
 
-#### NOTE: It is recommended to put this into the shared collection:
-```
-cd /path/to/Odin/shared
-git clone https://github.com/vassvik/odin-gl.git
-```
-
 ## Extra utility procedures (Outdated. See the end of `gl.odin`)
 
 Some useful helper procedures can be found in `helpers.odin`, for tasks such as:
@@ -56,4 +50,4 @@ glGetError() returned NO_ERROR
 glGetError() returned NO_ERROR
    call: glClearColor(0.800, 0.800, 0.800, 1.000)
    in:   C:/<snip>/main.odin(272:6)
-```
\ No newline at end of file
+```