228 lines
9.8 KiB
Scheme
228 lines
9.8 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
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;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build glib-or-gtk-build-system)
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#:use-module ((guix build gnu-build-system) #:prefix gnu:)
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#:use-module (guix build utils)
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:use-module (ice-9 ftw)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:export (%standard-phases
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glib-or-gtk-build))
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;; Commentary:
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;;
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;; Builder-side code of the standard glib-or-gtk build procedure.
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;;
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;; Code:
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(define (subdirectory-exists? parent sub-directory)
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(directory-exists? (string-append parent sub-directory)))
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(define (directory-included? directory directories-list)
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"Is DIRECTORY included in DIRECTORIES-LIST?"
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(fold (lambda (s p) (or (string-ci=? s directory) p))
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#f directories-list))
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;; We do not include $HOME/.guix-profile/gtk-v.0 (v=2 or 3) because we do not
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;; want to mix gtk+-2 and gtk+-3 modules. See
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;; https://developer.gnome.org/gtk3/stable/gtk-running.html
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(define (gtk-module-directories inputs)
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"Check for the existence of \"libdir/gtk-v.0\" in INPUTS. Return a list
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with all found directories."
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(let* ((version
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(if (string-match "gtk\\+-3"
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(or (assoc-ref inputs "gtk+")
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(assoc-ref inputs "source")
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"gtk+-3")) ; we default to version 3
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"3.0"
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"2.0"))
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(gtk-module
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(lambda (input prev)
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(let* ((in (match input
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((_ . dir) dir)
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(_ "")))
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(libdir
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(string-append in "/lib/gtk-" version)))
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(if (and (directory-exists? libdir)
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(not (directory-included? libdir prev)))
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(cons libdir prev)
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prev)))))
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(fold gtk-module '() inputs)))
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;; See
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;; http://www.freedesktop.org/wiki/DesktopThemeSpec
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;; http://freedesktop.org/wiki/Specifications/sound-theme-spec
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;; http://freedesktop.org/wiki/Specifications/icon-theme-spec
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;;
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;; Currently desktop themes are not well supported and do not honor
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;; XDG_DATA_DIRS. One example is evince which only looks for desktop themes
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;; in $HOME/.themes (for backward compatibility) and in XDG_DATA_HOME (which
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;; defaults to $HOME/.local/share). One way to handle these applications
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;; appears to be by making $HOME/.themes a symlink to
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;; $HOME/.guix-profile/share/themes.
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(define (data-directories inputs)
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"Check for the existence of \"$datadir/glib-2.0/schemas\" or XDG themes data
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in INPUTS. Return a list with all found directories."
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(define (data-directory input previous)
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(let* ((in (match input
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((_ . dir) dir)
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(_ "")))
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(datadir (string-append in "/share")))
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(if (and (or (subdirectory-exists? datadir "/glib-2.0/schemas")
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(subdirectory-exists? datadir "/sounds")
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(subdirectory-exists? datadir "/themes")
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(subdirectory-exists? datadir "/cursors")
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(subdirectory-exists? datadir "/wallpapers")
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(subdirectory-exists? datadir "/icons")
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(subdirectory-exists? datadir "/mime")) ;shared-mime-info
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(not (directory-included? datadir previous)))
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(cons datadir previous)
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previous)))
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(fold data-directory '() inputs))
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;; All GIO modules are expected to be installed in GLib's $libdir/gio/modules
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;; directory. That directory has to include a file called giomodule.cache
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;; listing all available modules. GIO can be made aware of modules in other
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;; directories with the help of the environment variable GIO_EXTRA_MODULES.
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;; The official GIO documentation states that this environment variable should
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;; only be used for testing and not in a production environment. However, it
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;; appears that there is no other way of specifying multiple modules
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;; directories (NIXOS also does use this variable). See
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;; https://developer.gnome.org/gio/stable/running-gio-apps.html
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(define (gio-module-directories inputs)
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"Check for the existence of \"$libdir/gio/modules\" in the INPUTS and
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returns a list with all found directories."
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(define (gio-module-directory input previous)
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(let* ((in (match input
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((_ . dir) dir)
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(_ "")))
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(gio-mod-dir (string-append in "/lib/gio/modules")))
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(if (and (directory-exists? gio-mod-dir)
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(not (directory-included? gio-mod-dir previous)))
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(cons gio-mod-dir previous)
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previous)))
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(fold gio-module-directory '() inputs))
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(define* (wrap-all-programs #:key inputs outputs
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(glib-or-gtk-wrap-excluded-outputs '())
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#:allow-other-keys)
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"Implement phase \"glib-or-gtk-wrap\": look for GSettings schemas and
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gtk+-v.0 libraries and create wrappers with suitably set environment variables
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if found.
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Wrapping is not applied to outputs whose name is listed in
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GLIB-OR-GTK-WRAP-EXCLUDED-OUTPUTS. This is useful when an output is known not
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to contain any GLib or GTK+ binaries, and where wrapping would gratuitously
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add a dependency of that output on GLib and GTK+."
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(define handle-output
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(match-lambda
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((output . directory)
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(unless (member output glib-or-gtk-wrap-excluded-outputs)
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(let* ((bindir (string-append directory "/bin"))
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(libexecdir (string-append directory "/libexec"))
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(bin-list (append (find-files bindir ".*")
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(find-files libexecdir ".*")))
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(datadirs (data-directories
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(alist-cons output directory inputs)))
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(gtk-mod-dirs (gtk-module-directories
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(alist-cons output directory inputs)))
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(gio-mod-dirs (gio-module-directories
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(alist-cons output directory inputs)))
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(data-env-var
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(if (not (null? datadirs))
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`("XDG_DATA_DIRS" ":" prefix ,datadirs)
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#f))
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(gtk-mod-env-var
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(if (not (null? gtk-mod-dirs))
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`("GTK_PATH" ":" prefix ,gtk-mod-dirs)
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#f))
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(gio-mod-env-var
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(if (not (null? gio-mod-dirs))
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`("GIO_EXTRA_MODULES" ":" prefix ,gio-mod-dirs)
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#f)))
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(cond
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((and data-env-var gtk-mod-env-var gio-mod-env-var)
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(for-each (cut wrap-program <>
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data-env-var
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gtk-mod-env-var
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gio-mod-env-var)
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bin-list))
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((and data-env-var gtk-mod-env-var (not gio-mod-env-var))
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(for-each (cut wrap-program <>
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data-env-var
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gtk-mod-env-var)
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bin-list))
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((and data-env-var (not gtk-mod-env-var) gio-mod-env-var)
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(for-each (cut wrap-program <>
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data-env-var
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gio-mod-env-var)
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bin-list))
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((and (not data-env-var) gtk-mod-env-var gio-mod-env-var)
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(for-each (cut wrap-program <>
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gio-mod-env-var
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gtk-mod-env-var)
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bin-list))
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((and data-env-var (not gtk-mod-env-var) (not gio-mod-env-var))
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(for-each (cut wrap-program <>
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data-env-var)
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bin-list))
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((and (not data-env-var) gtk-mod-env-var (not gio-mod-env-var))
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(for-each (cut wrap-program <>
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gtk-mod-env-var)
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bin-list))
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((and (not data-env-var) (not gtk-mod-env-var) gio-mod-env-var)
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(for-each (cut wrap-program <>
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gio-mod-env-var)
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bin-list))))))))
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(for-each handle-output outputs)
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#t)
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(define* (compile-glib-schemas #:key outputs #:allow-other-keys)
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"Implement phase \"glib-or-gtk-compile-schemas\": compile \"glib\" schemas
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if needed."
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(for-each (match-lambda
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((output . directory)
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(let ((schemasdir (string-append directory
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"/share/glib-2.0/schemas")))
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(when (and (directory-exists? schemasdir)
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(not (file-exists?
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(string-append schemasdir "/gschemas.compiled"))))
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(invoke "glib-compile-schemas" schemasdir)))))
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outputs)
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#t)
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(define %standard-phases
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(modify-phases gnu:%standard-phases
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(add-after 'install 'glib-or-gtk-compile-schemas compile-glib-schemas)
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(add-after 'install 'glib-or-gtk-wrap wrap-all-programs)))
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(define* (glib-or-gtk-build #:key inputs (phases %standard-phases)
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#:allow-other-keys #:rest args)
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"Build the given package, applying all of PHASES in order."
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(apply gnu:gnu-build #:inputs inputs #:phases phases args))
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;;; glib-or-gtk-build-system.scm ends here
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