Fix build with older `glib` and/or without `libmanette`mob0.14.2-3-dev
treec155a3b186e9730a3a961aec7482f62a13b59ac3
drwxr-xr-x - .github
-rw-r--r-- 256 .gitignore
-rw-r--r-- 115 .gitmodules
-rw-r--r-- 294 .travis.yml
-rw-r--r-- 35149 COPYING
-rw-r--r-- 4215 README.md
-rw-r--r-- 1030 appveyor.yml
drwxr-xr-x - data
drwxr-xr-x - debian
drwxr-xr-x - flatpak
-rw-r--r-- 1512 meson.build
drwxr-xr-x - meson
-rw-r--r-- 530 meson_options.txt
drwxr-xr-x - po
drwxr-xr-x - scripts
drwxr-xr-x - snap
drwxr-xr-x - src