Re: [PATCH] gnu: Add libepoxy.

[Mark H Weaver <mhw@netris.org>]

Andy Wingo <wingo@pobox.com> writes:

> From 42e4d5669bd12dbe7de3e47d14f987a0f3cd7059 Mon Sep 17 00:00:00 2001
> From: Andy Wingo <wingo@pobox.com>
> Date: Sun, 5 Apr 2015 11:28:32 +0200
> Subject: [PATCH 2/3] gnu: Add libepoxy.
>
> * gnu/packages/gl.scm (libepoxy): New variable.
> ---
>  gnu/packages/gl.scm | 46 ++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 46 insertions(+)
>
>
> diff --git a/gnu/packages/gl.scm b/gnu/packages/gl.scm
> index dc90a12..15bc91c 100644
> --- a/gnu/packages/gl.scm
> +++ b/gnu/packages/gl.scm
> @@ -418,3 +418,49 @@ extension functionality is exposed in a single header file.")
>       "Guile-OpenGL is a library for Guile that provides bindings to the
>  OpenGL graphics API.")
>      (license l:lgpl3+)))
> +
> +(define-public libepoxy
> +  (package
> +    (name "libepoxy")
> +    (version "1.2")
> +    (source (origin
> +              (method url-fetch)
> +              (uri (string-append
> +                    "https://github.com/anholt/libepoxy/archive/v"
> +                    version
> +                    ".tar.gz"))

For source URIs like this, where the last file name component doesn't
contain the package name (in this case it is "v1.2.tar.gz"), we prefer
to add a 'file-name' field to the 'origin' form:

  (file-name (string-append name "-" version ".tar.gz"))

Otherwise, the file name of the source tarball in the store will be
/gnu/store/<HASH>-v1.2.tar.gz which is suboptimal.

> +              (sha256
> +               (base32
> +                "1xp8g6b7xlbym2rj4vkbl6xpb7ijq7glpv656mc7k9b01x22ihs2"))))
> +    (arguments
> +     '(#:phases
> +       (alist-cons-after
> +        'unpack 'autoreconf
> +        (lambda _
> +          (zero? (system* "autoreconf" "-vif")))
> +        (alist-cons-before
> +         'configure 'patch-paths
> +         (lambda* (#:key inputs #:allow-other-keys)
> +           (let ((python (assoc-ref inputs "python"))
> +                 (mesa (assoc-ref inputs "mesa")))
> +             (substitute* "src/gen_dispatch.py"
> +               (("/usr/bin/env python") python))
> +             (substitute* (find-files "." "\\.[ch]$")
> +               (("libGL.so.1") (string-append mesa "/lib/libGL.so.1"))
> +               (("libEGL.so.1") (string-append mesa "/lib/libEGL.so.1")))))

Phases are supposed to return true for success or false for failure.
Since 'substitute*'s return value is unspecified, we should add a #t to
the end.

I went ahead and pushed this to 'core-updates' with these changes.

     Thanks!
       Mark