[gnome-build-meta/valentindavid/sourceforge-mirrors] Add some sourceforge explicitly for when mirror selector does not work

[Valentin David <valentindavid src gnome org>]

commit 1e6c5b2bcedf21b132ec0922daa9fb9fa5661333
Author: Valentin David <valentin david codethink co uk>
Date:   Thu Aug 27 13:54:24 2020 +0200

    Add some sourceforge explicitly for when mirror selector does not work

 elements/core-deps/espeak.bst | 2 +-
 project.conf                  | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)
---
diff --git a/elements/core-deps/espeak.bst b/elements/core-deps/espeak.bst
index 03f796f9..c631d114 100644
--- a/elements/core-deps/espeak.bst
+++ b/elements/core-deps/espeak.bst
@@ -1,7 +1,7 @@
 kind: manual
 sources:
 - kind: zip
-  url: sourceforge_net:espeak/files/espeak/espeak-1.48/espeak-1.48.04-source.zip
+  url: downloads.sourceforge.net:espeak/espeak/espeak-1.48/espeak-1.48.04-source.zip
 depends:
 - core-deps/portaudio.bst
 - freedesktop-sdk.bst:bootstrap-import.bst
diff --git a/project.conf b/project.conf
index e145bfe1..c1702854 100644
--- a/project.conf
+++ b/project.conf
@@ -70,6 +70,15 @@ mirrors:
   aliases:
     ftp_gnu_org:
     - https://mirrors.kernel.org/gnu/
+- name: sourceforge
+  aliases:
+    downloads.sourceforge.net:
+    - https://downloads.sourceforge.net/
+    - https://kumisystems.dl.sourceforge.net/project/
+    - https://cfhcable.dl.sourceforge.net/project/
+    - https://deac-riga.dl.sourceforge.net/project/
+    - https://deac-ams.dl.sourceforge.net/project/
+    - https://deac-fra.dl.sourceforge.net/project/
 
 # Some overrides to the default sandbox execution environment
 #