gnu: gnome-builder: Fix build.

* gnu/packages/patches/gnome-builder-update-libportal.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it here.
* gnu/packages/gnome.scm (gnome-builder)[patches]: Use it here.
[inputs, native-inputs]: Add python.

gnu/local.mk

@@ -1182,6 +1182,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/gmp-faulty-test.patch			\
   %D%/packages/patches/gnash-fix-giflib-version.patch	        \
   %D%/packages/patches/gnome-boxes-add-guix-logo.patch		\
+  %D%/packages/patches/gnome-builder-update-libportal.patch		\
   %D%/packages/patches/gnome-control-center-libexecdir.patch	\
   %D%/packages/patches/gnome-online-miners-tracker-3.patch	\
   %D%/packages/patches/gnome-screenshot-meson-0.60.patch	\

gnu/packages/gnome.scm

@@ -12331,7 +12331,9 @@ (define-public gnome-builder
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "04p031i999dccbnlbysmr6f93x7dji7b559j6yhdsqbqgxb7ncan"))))
+                "04p031i999dccbnlbysmr6f93x7dji7b559j6yhdsqbqgxb7ncan"))
+              (patches
+               (search-patches "gnome-builder-update-libportal.patch"))))
     (build-system meson-build-system)
     (arguments
      `(#:glib-or-gtk? #t     ; To wrap binaries and compile schemas
@@ -12379,6 +12381,7 @@ (define-public gnome-builder
        ("libportal" ,libportal)
        ("libsoup" ,libsoup-minimal-2)
        ("llvm" ,llvm)
+       ("python" ,python)
        ("python-pygobject" ,python-pygobject)
        ("sysprof" ,sysprof)
        ("template-glib" ,template-glib)
@@ -12391,6 +12394,7 @@ (define-public gnome-builder
        ("glib:bin" ,glib "bin")
        ("gettext" ,gettext-minimal)
        ("pkg-config" ,pkg-config)
+       ("python" ,python)
        ("vala" ,vala)
        ("xorg-server" ,xorg-server-for-tests)))
     (home-page "https://wiki.gnome.org/Apps/Builder")

gnu/packages/patches/gnome-builder-update-libportal.patch

@@ -0,0 +1,93 @@
+From b3bfa0df53a3749c3b73cb6c4bad5cab3fa549a1 Mon Sep 17 00:00:00 2001
+From: Abderrahim Kitouni <akitouni@gnome.org>
+Date: Sat, 25 Dec 2021 16:25:43 +0100
+Subject: [PATCH] build: use libportal 0.5
+
+This partly reverts 2aea4bd7d0ced77a7d0778517b4505af5dea2dac
+---
+ build-aux/flatpak/org.gnome.Builder.json                 | 7 ++++---
+ meson.build                                              | 2 +-
+ src/gstyle/gstyle-color-panel.c                          | 2 +-
+ src/plugins/devhelp/gbp-devhelp-page.c                   | 2 +-
+ src/plugins/open-with-external/gbp-owe-workbench-addin.c | 2 +-
+ 5 files changed, 8 insertions(+), 7 deletions(-)
+
+diff --git a/build-aux/flatpak/org.gnome.Builder.json b/build-aux/flatpak/org.gnome.Builder.json
+index 02ac31ede..a32d29b92 100644
+--- a/build-aux/flatpak/org.gnome.Builder.json
++++ b/build-aux/flatpak/org.gnome.Builder.json
+@@ -601,15 +601,16 @@
+             "name" : "libportal",
+             "config-opts" : [
+                 "--libdir=/app/lib",
+-                "--buildtype=debugoptimized"
++                "--buildtype=debugoptimized",
++                "-Dbackends=gtk3"
+             ],
+             "buildsystem" : "meson",
+             "builddir" : true,
+             "sources" : [
+                 {
+                     "type" : "archive",
+-                    "url" : "https://github.com/flatpak/libportal/releases/download/0.4/libportal-0.4.tar.xz",
+-                    "sha256" : "3cd5f50907831cf236b40aa14c5a14ccbbf08828cecb3286efa82ce03cacef28"
++                    "url" : "https://github.com/flatpak/libportal/releases/download/0.5/libportal-0.5.tar.xz",
++                    "sha256" : "d8c8cb18a34e5eeb26a39c94044c955995b01de0e139caac5e18c076cf821b3b"
+                 }
+             ]
+         },
+diff --git a/meson.build b/meson.build
+index 01737034b..494e0d752 100644
+--- a/meson.build
++++ b/meson.build
+@@ -284,7 +284,7 @@ libjsonrpc_glib_dep = dependency('jsonrpc-glib-1.0', version: '>= 3.41.0')
+ libm_dep = cc.find_library('m', required: false)
+ libpangoft2_dep = dependency('pangoft2', version: '>= 1.38.0')
+ libpeas_dep = dependency('libpeas-1.0', version: '>= 1.22.0')
+-libportal_dep = dependency('libportal', version: '>= 0.3', required: false)
++libportal_dep = dependency('libportal-gtk3', required: false)
+ libtemplate_glib_dep = dependency('template-glib-1.0', version: '>= 3.28.0')
+ libvte_dep = dependency('vte-2.91', version: '>= 0.65.0')
+ libwebkit_dep = dependency('webkit2gtk-4.0', version: '>= 2.26', required: false)
+diff --git a/src/gstyle/gstyle-color-panel.c b/src/gstyle/gstyle-color-panel.c
+index 15742a7be..a6295c168 100644
+--- a/src/gstyle/gstyle-color-panel.c
++++ b/src/gstyle/gstyle-color-panel.c
+@@ -30,7 +30,7 @@
+ #include "gstyle-color.h"
+ 
+ #include <libportal/portal.h>
+-#include <libportal/portal-gtk3.h>
++#include <libportal-gtk3/portal-gtk3.h>
+ 
+ #define HSV_TO_SCALE_FACTOR (1.0 / 256.0)
+ #define CIELAB_L_TO_SCALE_FACTOR (100.0 / 256.0)
+diff --git a/src/plugins/devhelp/gbp-devhelp-page.c b/src/plugins/devhelp/gbp-devhelp-page.c
+index 5d5c52b0d..2ac788414 100644
+--- a/src/plugins/devhelp/gbp-devhelp-page.c
++++ b/src/plugins/devhelp/gbp-devhelp-page.c
+@@ -25,7 +25,7 @@
+ #include <webkit2/webkit2.h>
+ 
+ #include <libportal/portal.h>
+-#include <libportal/portal-gtk3.h>
++#include <libportal-gtk3/portal-gtk3.h>
+ 
+ #include "gbp-devhelp-page.h"
+ #include "gbp-devhelp-search.h"
+diff --git a/src/plugins/open-with-external/gbp-owe-workbench-addin.c b/src/plugins/open-with-external/gbp-owe-workbench-addin.c
+index 51d2da844..816fe643f 100644
+--- a/src/plugins/open-with-external/gbp-owe-workbench-addin.c
++++ b/src/plugins/open-with-external/gbp-owe-workbench-addin.c
+@@ -23,7 +23,7 @@
+ #include "gbp-owe-workbench-addin.h"
+ 
+ #include <libportal/portal.h>
+-#include <libportal/portal-gtk3.h>
++#include <libportal-gtk3/portal-gtk3.h>
+ 
+ struct _GbpOweWorkbenchAddin
+ {
+-- 
+GitLab
+