Failed attempt to cross-compile opengl, sdl, go.

crossgl.go

package main

// Compile on WSL with  
//   CC=i686-w64-mingw32-gcc GOOS=windows GOARCH=386 CGO_ENABLED=1 go run .

import (
	"log"

	"github.com/go-gl/gl/v3.3-core/gl"
	"github.com/veandco/go-sdl2/sdl"
)

func main() {
	if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil {
		log.Fatal("Failed to init SDL: ", err)
	}
	defer func() {
		sdl.Quit()
	}()

	sdl.GLSetAttribute(sdl.GL_CONTEXT_PROFILE_MASK, sdl.GL_CONTEXT_PROFILE_CORE)
	sdl.GLSetAttribute(sdl.GL_CONTEXT_MAJOR_VERSION, 3)
	sdl.GLSetAttribute(sdl.GL_CONTEXT_MINOR_VERSION, 3)

	win, err := sdl.CreateWindow("A window from beyond...", sdl.WINDOWPOS_CENTERED, sdl.WINDOWPOS_CENTERED, 1024, 768, sdl.WINDOW_OPENGL)
	if err != nil {
		log.Fatal("Failed to create window: ", err)
	}
	defer func() {
		if err := win.Destroy(); err != nil {
			log.Print("Failed to destroy window: ", err)
		}
	}()
	glctx, err := win.GLCreateContext()
	if err != nil {
		log.Fatal("Failed to creat gl context: ", err)
	}
	defer sdl.GLDeleteContext(glctx)

	gl.ClearColor(0, 0.1, 0, 1.0)
	gl.Clear(gl.COLOR_BUFFER_BIT)

	if err := gl.Init(); err != nil {
		log.Fatal("Failed to init OpenGL: ", err)
	}

	running := true
	for running {
		event := sdl.PollEvent()
		if event == nil {
			continue
		}
		switch event.(type) {
		case *sdl.QuitEvent, *sdl.KeyboardEvent:
			running = false
		}
		win.GLSwap()
	}
}