libportal provides GIO-style async APIs for most Flatpak portals. You can find the documentation here.
libportal uses Meson to build its projects. To install Meson on your system,
follow the Getting Meson instructions. If your system is missing a
dependency, Meson will tell you which one. How you install your missing
dependencies is up to you.
The first time you build libportal, give meson a directory to build into; we
recommend _build:
meson _build
Then use ninja to build the project, pointing it to your build directory:
ninja -C _build
For subsequent builds, you only need to use the ninja -C _build command.
libportal includes Meson build options for components that can optionally
be built. Run meson configure to see all available options or,
after first running meson _build, view available options and their current
values with:
meson configure _build
To change an option, re-configure the project:
meson configure _build -Dportal-tests=true
You can also pass in options right from the start, e.g. with:
meson _build -Dportal-tests=true
Then build:
ninja -C _build
To generate test binaries, set the portal-tests option to true,
e.g. -Dportal-tests=true, to build the portal tests for the backend
built. Then run the desired test binary, e.g.:
./_build/portal-test/gtk3/portal-test-gtk3
or
./_build/portal-test/qt5/portal-test-qt5