[gtk/flatpak-build-sassc] Build sassc as a dependency for flatpaks

[Matthias Clasen <matthiasc src gnome org>]

commit 84f5dd1d703c84d0784590164cce9089b05903f1
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 5 23:47:13 2020 -0500

    Build sassc as a dependency for flatpaks
    
    Downloading the subproject during the GTK build fails
    in a flatpak build due to lack of network access.
    flatpak-builder insists on having these things explicitly
    spelled out as dependencies.

 build-aux/flatpak/org.gtk.Demo4.json          | 12 ++++++++++++
 build-aux/flatpak/org.gtk.IconBrowser4.json   | 12 ++++++++++++
 build-aux/flatpak/org.gtk.WidgetFactory4.json | 12 ++++++++++++
 3 files changed, 36 insertions(+)
---
diff --git a/build-aux/flatpak/org.gtk.Demo4.json b/build-aux/flatpak/org.gtk.Demo4.json
index ceff29623d..95e18d3de9 100644
--- a/build-aux/flatpak/org.gtk.Demo4.json
+++ b/build-aux/flatpak/org.gtk.Demo4.json
@@ -54,6 +54,18 @@
                 }
             ]
         },
+        {
+            "name" : "sassc",
+            "buildsystem" : "autotools",
+            "no-autogen" : true,
+            "builddir" : true,
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/lazka/sassc.git";
+                }
+            ]
+        },
         {
             "name": "gtk",
             "buildsystem": "meson",
diff --git a/build-aux/flatpak/org.gtk.IconBrowser4.json b/build-aux/flatpak/org.gtk.IconBrowser4.json
index 6dc46fcdab..2f9932f293 100644
--- a/build-aux/flatpak/org.gtk.IconBrowser4.json
+++ b/build-aux/flatpak/org.gtk.IconBrowser4.json
@@ -54,6 +54,18 @@
                 }
             ]
         },
+        {
+            "name" : "sassc",
+            "buildsystem" : "autotools",
+            "no-autogen" : true,
+            "builddir" : true,
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/lazka/sassc.git";
+                }
+            ]
+        },
         {
             "name": "gtk",
             "buildsystem": "meson",
diff --git a/build-aux/flatpak/org.gtk.WidgetFactory4.json b/build-aux/flatpak/org.gtk.WidgetFactory4.json
index 8030528a14..9226546da7 100644
--- a/build-aux/flatpak/org.gtk.WidgetFactory4.json
+++ b/build-aux/flatpak/org.gtk.WidgetFactory4.json
@@ -54,6 +54,18 @@
                 }
             ]
         },
+        {
+            "name" : "sassc",
+            "buildsystem" : "autotools",
+            "no-autogen" : true,
+            "builddir" : true,
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/lazka/sassc.git";
+                }
+            ]
+        },
         {
             "name": "gtk",
             "buildsystem": "meson",