build: Fix Sysprof interface path with split sysprof package

When sysprof-4 and libsysprof-capture-4 are installed into different
prefixes, such as with Nix package manager, the D-Bus interfaces
are likely not discoverable from the latter package.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2572>

cogl/meson.build

@@ -31,7 +31,7 @@ cogl_pkg_private_deps = [
 
 if have_profiler
   cogl_pkg_private_deps += [
-    sysprof_dep,
+    libsysprof_capture_dep,
   ]
 endif
 

meson.build

@@ -411,7 +411,7 @@ endif
 have_profiler = get_option('profiler')
 if have_profiler
   # libsysprof-capture support
-  sysprof_dep = dependency('sysprof-capture-4',
+  libsysprof_capture_dep = dependency('sysprof-capture-4',
     required: true,
     default_options: [
       'examples=false',
@@ -424,6 +424,13 @@ if have_profiler
     ],
     fallback: ['sysprof', 'libsysprof_capture_dep'],
   )
+
+  if libsysprof_capture_dep.type_name() == 'pkgconfig'
+    sysprof_dep = dependency('sysprof-4')
+    sysprof_dbus_interfaces_dir = join_paths(sysprof_dep.get_variable('datadir'), 'dbus-1', 'interfaces')
+  else
+    sysprof_dbus_interfaces_dir = join_paths(mutter_srcdir, 'subprojects', 'sysprof', 'src')
+  endif
 endif
 
 required_functions = [

src/meson.build

@@ -885,12 +885,6 @@ if have_profiler
     'core/meta-profiler.h',
   ]
 
-  if sysprof_dep.type_name() == 'pkgconfig'
-    sysprof_dbus_interfaces_dir = join_paths(sysprof_dep.get_variable('datadir'), 'dbus-1', 'interfaces')
-  else
-    sysprof_dbus_interfaces_dir = join_paths(mutter_srcdir, 'subprojects', 'sysprof', 'src')
-  endif
-
   sysprof3_dbus_file = join_paths(sysprof_dbus_interfaces_dir, 'org.gnome.Sysprof3.Profiler.xml')
   dbus_sysprof3_profiler_built_sources = gnome.gdbus_codegen('meta-dbus-sysprof3-profiler',
       sysprof3_dbus_file,