meson: Override dependencies to improve usage as a subproject
With this change, sysprof can be consumed as a subproject without
making any changes to the build files of a project. All you need to do
is provide a wrap file with a [provide]
section:
https://mesonbuild.com/Wrap-dependency-system-manual.html#provide-section
This is also necessary because otherwise projects need to hard-code
the subproject name, which might be sysprof
when using wrap-git
or
sysprof-3.46.0
when using wrap-file
(to build from a release
tarball). This can cause conflicts between different subprojects that
consume sysprof differently.
Other projects like glib, cairo, pango, etc already do this.