[jhbuild] core-deps-3.28: libsigc++ has moved to github

[Murray Cumming <murrayc src gnome org>]

commit 2c3afca74d758496577fbd91598d565605b8b8ce
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Mar 14 21:15:27 2018 +0100

    core-deps-3.28: libsigc++ has moved to github

 modulesets/gnome-suites-core-deps-3.28.modules |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/modulesets/gnome-suites-core-deps-3.28.modules b/modulesets/gnome-suites-core-deps-3.28.modules
index 01c9e9d..95335d2 100644
--- a/modulesets/gnome-suites-core-deps-3.28.modules
+++ b/modulesets/gnome-suites-core-deps-3.28.modules
@@ -1475,14 +1475,19 @@ the module and we will just change it to use a tarball anyway.
   </autotools>
 
   <autotools id="libsigcplusplus-2.0">
-    <branch checkoutdir="libsigcplusplus-2.0" module="libsigcplusplus" revision="libsigc++-2-10"/>
+    <branch repo="github.com"
+            checkoutdir="libsigcplusplus-2.0"
+            module="libsigcplusplus/libsigcplusplus.git"
+            revision="libsigc++-2-10"/>
     <dependencies>
       <dep package="mm-common"/>
     </dependencies>
   </autotools>
 
   <autotools id="libsigcplusplus">
-    <branch/>
+    <branch repo="github.com"
+            checkoutdir="libsigcplusplus"
+            module="libsigcplusplus/libsigcplusplus.git"/>
     <dependencies>
       <dep package="mm-common"/>
     </dependencies>