libmalcontent: Rework pkg-config file generation

Meson 0.49 has matured its pkg-config file generation a little, and the
API has subtly changed. The main library we’re building a pkg-config
file for is now passed as the first argument; and all dependencies can
be passed to `libraries`/`libraries_private`. Any dependencies which
provide pkg-config files will automatically be moved into the pkg-config
file’s `Requires`/`Requires.private` sections.

See https://mesonbuild.com/Pkgconfig-module.html#implicit-dependencies

This bumps our Meson dependency to ≥ 0.49.0.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

libmalcontent/meson.build

@@ -46,15 +46,14 @@ install_headers(libmalcontent_headers,
   subdir: libmalcontent_include_subdir,
 )
 
-pkgconfig.generate(
-  libraries: [ libmalcontent ],
+pkgconfig.generate(libmalcontent,
   subdirs: libmalcontent_api_name,
   version: meson.project_version(),
   name: 'libmalcontent',
   filebase: libmalcontent_api_name,
   description: 'Library providing access to parental control settings.',
-  requires: libmalcontent_public_deps,
-  requires_private: libmalcontent_private_deps,
+  libraries: libmalcontent_public_deps,
+  libraries_private: libmalcontent_private_deps,
 )
 
 gnome.generate_gir(libmalcontent,

meson.build

@@ -1,6 +1,6 @@
 project('malcontent', 'c',
   version : '0.4.0',
-  meson_version : '>= 0.47.0',
+  meson_version : '>= 0.49.0',
   license: 'LGPLv2.1+',
   default_options : [
     'buildtype=debugoptimized',