Ah, yeah, that blog post I linked is using the "gl" package rather than the "OpenGL"/"OpenGLRaw" packages, so some of the names of things are a bit different.

Glad you got it sorted in the end!

2015-05-29 13:32 GMT+09:00 <briand@aracnet.com>:
On Tue, 26 May 2015 14:34:16 +0900
"Daniel P. Wright" <dani@dpwright.com> wrote:

> Hi Brian,
>
> Have you checked for / output any GL errors that happen before you call swapBuffers? I have a function printErrors (as defined here http://dpwright.com/posts/2015/03/25/the-haskell-gl-package/#error-handling-utilities ) which I scatter around when things go wrong to try and find the root cause...
>

bug report!


  m@(~(Just w)) <- createWindow 400 400 "Title" Nothing Nothing
  when (isNothing m) (error "Couldn't create window!")

  GLFW.makeContextCurrent m
  ^^^^^^^^^^^^^^^^^^^^^^^^^

then no seg-faults.

Brian