Meson build breaks on Continuous
The Meson build of gedit breaks when trying to run it as part of the Continuous build.
Since Continuous builds projects in a sandbox without network, it'll run the submodules bits first. The problem is that gedit uses a submodule pointing libgd to a file system's relative location of the source directory, instead of the URL of the libgd's Git repository like every other project.
Additionally, gedit will use libgd as a Meson subproject regardless of whether it's available or not as a system dependency.