Add a Meson devenv configuration
Review Request #973 — Created Oct. 1, 2021 and submitted
Add a Meson devenv configuration.
This allows running
meson devenvas defined at https://mesonbuild.com/Commands.html#devenv
meson devenv -C build pidgin3and
meson devenv -C build finch3on a system without either installed (even from this build).
Note stock icons don't seem to work with
XDG_DATA_DIRS, which is why the other review requests were needed. If anything still has stock icons, they'll be broken without an install.