This is a workaround for a Meson bug that incorrectly trigger
reconfigure when files change in build directory. This commit can be
reverted once GStreamer depends on Meson >=0.54.0.
See https://github.com/mesonbuild/meson/pull/6770Fixes: #85
When building with -Ddefault_library=static, also build a single library
containing all built plugins. Any external dependencies are still
dynamically linked.
A monolithic library is easier to distribute, and in some envs like
Android is required.