[gnome-builder] build: Install pkgconfig file in standard location

[Christian Hergert <chergert src gnome org>]

commit cfa7f886f39864c4265b1ee77510e7b95627d28e
Author: Matthew Jakeman <mjakeman26 outlook co nz>
Date:   Tue Dec 21 22:44:41 2021 +1300

    build: Install pkgconfig file in standard location

 src/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/meson.build b/src/meson.build
index dac1e1611..89e82e49d 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -99,7 +99,7 @@ pkgconfig.generate(
          name: 'gnome-builder-@0@.@1@'.format(MAJOR_VERSION, MINOR_VERSION),
      filebase: 'gnome-builder-@0@.@1@'.format(MAJOR_VERSION, MINOR_VERSION),
   description: 'Contains the plugin container for Builder.',
-  install_dir: join_paths(pkglibdir, 'pkgconfig'),
+  install_dir: join_paths(get_option('libdir'), 'pkgconfig'),
      requires: [ 'gio-2.0', 'gio-unix-2.0', 'gtk+-3.0', 'gtksourceview-4', 'libdazzle-1.0', 'vte-2.91', 
'template-glib-1.0', 'libpeas-1.0' ],
 )