What version of Go are you using (go version)?

go1.9.2 windows/amd64

Does this issue reproduce with the latest release?

Yes.

What operating system and processor architecture are you using (go env)?

GOARCH=amd64
GOOS=windows

What did you do?

I tried to use a package that imported x/mobile/gl.

What did you expect to see?

I expected x/mobile/gl to compile on Windows

What did you see instead?

Two errors, both in work_windows.go

1. at 132:

case glfnBindVertexArray:
    syscall.Syscall(glBindVertexArray.Addr(), 1, c.args.a0, 0)

Is invalid, as syscall.Syscall requires five arguments.

2. at 186:

case glfnDeleteVertexArray:
    syscall.Syscall(glDeleteVertexArrays.Addr(), 2, 1, uintptr(unsafe.Pointer(&c.args.a0)), 0)

Is invalid, as glDeleteVertexArrays is not defined.

The literal errors from the command line follow:

# golang.org/x/mobile/gl
..\..\..\..\..\golang.org\x\mobile\gl\work_windows.go:132:18: not enough arguments in call to syscall.Syscall
        have (uintptr, number, uintptr, number)
        want (uintptr, uintptr, uintptr, uintptr, uintptr)
..\..\..\..\..\golang.org\x\mobile\gl\work_windows.go:186:19: undefined: glDeleteVertexArrays

On my local machine, I resolved this by adding another 0 to the syscall.Syscall and by adding glDeleteVertexArrays = libGLESv2.NewProc("glDeleteVertexArrays") at line 461, but I am not knowingly using these functions so I do not know that that is the appropriate fix.