build: cleanup dependency checking

We always require polkit now, so that we can fallback when we fail to
communicate with the peer.

src/libsysprof-capture/meson.build

@@ -30,7 +30,7 @@ configure_file(
 )
 
 libsysprof_capture_deps = [
-  dependency('glib-2.0', version: glib_req_version),
+  glib_dep,
 ]
 
 libsysprof_capture = static_library(

src/libsysprof-ui/meson.build

@@ -54,8 +54,8 @@ libsysprof_ui_resources = gnome.compile_resources(
 )
 
 libsysprof_ui_deps = [
-  dependency('gio-2.0', version: glib_req_version),
-  dependency('gtk+-3.0', version: gtk_req_version),
+  gio_dep,
+  gtk_dep,
   libsysprof_dep,
 ]
 

src/libsysprof/meson.build

@@ -58,8 +58,9 @@ libsysprof_public_sources += libsysprof_capture_sources
 libsysprof_public_headers += libsysprof_capture_headers
 
 libsysprof_deps = [
-  dependency('gio-2.0', version: glib_req_version),
-  dependency('gio-unix-2.0', version: glib_req_version),
+  gio_dep,
+  gio_unix_dep,
+  polkit_dep,
 ]
 
 if host_machine.system() == 'linux'
@@ -89,10 +90,6 @@ if host_machine.system() != 'darwin'
   libsysprof_deps += [cxx.find_library('stdc++')]
 endif
 
-if get_option('with_sysprofd') != 'none'
-  libsysprof_deps += dependency('polkit-gobject-1')
-endif
-
 libsysprof = shared_library(
   'sysprof-@0@'.format(libsysprof_api_version),
   libsysprof_public_sources + libsysprof_private_sources,

src/sysprofd/meson.build

@@ -10,10 +10,10 @@ sysprofd_sources = [
 pkglibexecdir = join_paths(get_option('prefix'), get_option('libexecdir'))
 
 sysprofd_deps = [
-  dependency('glib-2.0', version: glib_req_version),
-  dependency('gio-2.0', version: glib_req_version),
-  dependency('gio-unix-2.0', version: glib_req_version),
-  dependency('polkit-gobject-1', version: polkit_req_version),
+  glib_dep,
+  gio_dep,
+  gio_unix_dep,
+  polkit_dep,
 ]
 
 sysprofd = executable('sysprofd', sysprofd_sources,