[gnome-photos/wip/rishi/build-submodules-sync] build: Synchronize the Git submodules' remote URLs like GitLab CI/CD

[Debarshi Ray <debarshir src gnome org>]

commit 7f06c176a8fef7e0d599cddb9063e72a031dfc62
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Sep 28 12:58:17 2018 +0200

    build: Synchronize the Git submodules' remote URLs like GitLab CI/CD
    
    See:
    https://docs.gitlab.com/ce/ci/yaml/README.html#git-submodule-strategy

 autogen.sh  | 1 +
 meson.build | 1 +
 2 files changed, 2 insertions(+)
---
diff --git a/autogen.sh b/autogen.sh
index 9b1180d1..9c4cd1a4 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -22,6 +22,7 @@ if [ "$#" = 0 -a "x$NOCONFIGURE" = "x" ]; then
         echo "" >&2
 fi
 
+git submodule sync --recursive || exit 1
 git submodule update --init --recursive || exit 1
 autoreconf --verbose --force --install || exit 1
 
diff --git a/meson.build b/meson.build
index 8a7c26e9..3ff4f6aa 100644
--- a/meson.build
+++ b/meson.build
@@ -31,6 +31,7 @@ top_inc = include_directories('.')
 
 git = find_program('git')
 if not photos_buildtype.contains('plain')
+  run_command(git, '-C', source_root, 'submodule', 'sync', '--recursive')
   run_command(git, '-C', source_root, 'submodule', 'update', '--init', '--recursive')
 endif