build: Clean up handling of internal dependencies

We currently only specify the library to link with when declaring
a dependency, which means that satisfying other requirements like
dependencies or includes is left to the targets.

Move everything required by libshell/libst to the declared dependency,
so other targets only need to care about their own requirements.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3615>

src/meson.build

@@ -238,7 +238,7 @@ endif
 libshell = library('shell-' + mutter_api_version,
   sources: libshell_gir_sources + libshell_no_gir_sources,
   dependencies: gnome_shell_deps + [libshell_menu_dep, libst_dep, mutter_dep, gnome_desktop_dep, m_dep],
-  include_directories: [conf_inc, st_inc, include_directories('tray')],
+  include_directories: [conf_inc, include_directories('tray')],
   c_args: gnome_shell_cflags,
   link_with: libshell_link_with,
   build_rpath: mutter_typelibdir,
@@ -247,7 +247,11 @@ libshell = library('shell-' + mutter_api_version,
   install: true
 )
 
-libshell_dep = declare_dependency(link_with: libshell)
+libshell_dep = declare_dependency(
+  link_with: libshell,
+  dependencies: [libst_dep, mutter_dep],
+  include_directories: [include_directories('tray')],
+)
 
 libshell_gir_includes = [
   'Clutter-@0@'.format(mutter_api_version),
@@ -278,7 +282,7 @@ libshell_gir = gnome.generate_gir(libshell,
 executable('gnome-shell', 'main.c',
   c_args: gnome_shell_cflags + typelib_cflags,
   dependencies: gnome_shell_deps + [libshell_dep, libst_dep, mutter_dep],
-  include_directories: [conf_inc, st_inc, include_directories('tray')],
+  include_directories: [conf_inc],
   build_rpath: mutter_typelibdir,
   install_rpath: install_rpath,
   install: true
@@ -303,9 +307,8 @@ executable('gnome-shell-perf-helper', 'shell-perf-helper.c', js_resources,
 )
 
 run_test = executable('run-js-test', 'run-js-test.c',
-  dependencies: [mutter_dep, mtk_dep, gdk_pixbuf_dep, gio_dep, gi_dep, gjs_dep],
+  dependencies: [gio_dep, gi_dep, gjs_dep, libshell_dep],
   c_args: typelib_cflags,
   include_directories: [conf_inc],
-  link_with: libshell,
   build_rpath: mutter_typelibdir,
 )

src/st/meson.build

@@ -181,19 +181,22 @@ st_cflags = [
   '-DPACKAGE_DATA_DIR="@0@"'.format(pkgdatadir)
 ]
 
+st_deps = [
+  mtk_dep,
+  clutter_dep,
+  mutter_dep,
+  gdk_pixbuf_dep,
+  pango_dep,
+]
+
 # Currently meson requires a shared library for building girs
 libst = shared_library('st-' + mutter_api_version,
   sources: st_gir_sources + st_nogir_sources + croco_sources,
   c_args: st_cflags,
-  dependencies: [
-    mtk_dep,
-    clutter_dep,
-    mutter_dep,
+  dependencies: st_deps + [
     libxml_dep,
-    gdk_pixbuf_dep,
     m_dep,
     schemas_dep,
-    pango_dep,
   ],
   build_rpath: mutter_typelibdir,
   install_rpath: mutter_typelibdir,
@@ -201,8 +204,11 @@ libst = shared_library('st-' + mutter_api_version,
   install: true
 )
 
-libst_dep = declare_dependency(link_with: libst,
-  sources: st_enums[1]
+libst_dep = declare_dependency(
+  link_with: libst,
+  sources: st_enums[1],
+  dependencies: st_deps,
+  include_directories: [st_inc],
 )
 
 if get_option('tests') and have_x11_client