Re: Cannot build guile-chickadee.

[Thompson, David]

On Wed, Jun 20, 2018 at 8:37 AM, Ricardo Wurmus <address@hidden> wrote:
>
> Hey Dave,
>
>>> Turns out that the Makefile of guile-sdl2 needed to be patched.  After
>>> the patch Chickadee can be built with the release tarball.
>>>
>>> I’ll push the package definition shortly.
>>
>> Could you tell me the commit id when you push it? I'd like to just
>> sort out the issues you were having and make new releases of
>> guile-sdl2 and chickadee so that Guix can have clean packages with no
>> hackery involved.
>
> I’ve pushed guile-chickadee with commit
> 00fca594da4c63a976e1c67ec3caab47f2a38d87.  The patch to guile-sdl2 is in
> commit e5b77ccfe861545a61f6c6355f5c9fb712bc4894.  After that I noticed
> that the package might also need a build phase to fix the installation
> location:
>
> --8<---------------cut here---------------start------------->8---
> diff --git a/gnu/packages/game-development.scm 
> b/gnu/packages/game-development.scm
> index b428fa77f..f8c6583f9 100644
> --- a/gnu/packages/game-development.scm
> +++ b/gnu/packages/game-development.scm
> @@ -1248,7 +1248,16 @@ a 2D editor view.")
>                  "10qx0ha5gsayybd186r1my7vc7rf5fbzp9jvmc4xg9a8wz8rqhah"))))
>      (build-system gnu-build-system)
>      (arguments
> -     '(#:make-flags '("GUILE_AUTO_COMPILE=0")))
> +     '(#:make-flags '("GUILE_AUTO_COMPILE=0")
> +       #:phases
> +       (modify-phases %standard-phases
> +         (add-after 'configure 'patch-makefile
> +           (lambda _
> +             ;; Install compiled Guile files in the expected place.
> +             (substitute* '("Makefile")
> +               (("^godir = .*$")
> +                "godir = $(moddir)\n"))
> +             #t)))))
>      (propagated-inputs
>       `(("guile-opengl" ,guile-opengl)
>         ("guile-sdl2" ,guile-sdl2)))
> --8<---------------cut here---------------end--------------->8---

Okay, I will make this change upstream.

> Unfortunately, I still cannot use it as the example fails with OpenGL
> errors, e.g.:
>
>     chickadee/window.scm:56:21: In procedure open-window:
>     Throw to key `sdl-error' with args `("make-window" "failed to create 
> window: ~A" "Couldn't find matching GLX visual")'.
>
> So I picked the first of the visuals that glxinfo outputs:
>
>     export SDL_VIDEO_X11_VISUALID=0x022
>
> But then I get another error:
>
>     chickadee/window.scm:60:21: In procedure open-window:
>     Throw to key `sdl-error' with args `("make-gl-context" "failed to create 
> OpenGL context: ~A" "Could not create GL context")'.
>
> And that’s probably because something somewhere decides that the
> graphics chip in my Librem 13 does not support OpenGL 3.3(?), even
> though glxinfo says this:
>
> --8<---------------cut here---------------start------------->8---
> Extended renderer info (GLX_MESA_query_renderer):
>     Vendor: Intel Open Source Technology Center (0x8086)
>     Device: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2)  (0x1916)
>     Version: 17.3.8
>     Accelerated: yes
>     Video memory: 3072MB
>     Unified memory: yes
>     Preferred profile: core (0x1)
>     Max core profile version: 4.5
>     Max compat profile version: 3.0
>     Max GLES1 profile version: 1.1
>     Max GLES[23] profile version: 3.2
> …
> OpenGL vendor string: Intel Open Source Technology Center
> OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2)
> OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.3.8
> OpenGL core profile shading language version string: 4.50
> OpenGL core profile context flags: (none)
> OpenGL core profile profile mask: core profile
> --8<---------------cut here---------------end--------------->8---
>
> Not sure if this is a problem with my setup here.

Hmm, there's no problem with your setup. Your GPU supports a higher
version of OpenGL that mine does so it should just work. I'll let you
know if I can find anything that might resolve this issue.  SDL is
being less than helpful with its error message.

Thanks,

- Dave