[gtk+] build: Add directories to the summary

[Timm Bäder <baedert src gnome org>]

commit c3a191abe29ad06bac8cd444cf32720ae556ab4a
Author: Timm Bäder <mail baedert org>
Date:   Thu Sep 14 16:04:50 2017 +0200

    build: Add directories to the summary

 meson.build |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/meson.build b/meson.build
index 55dcdba..6d849b9 100644
--- a/meson.build
+++ b/meson.build
@@ -633,10 +633,15 @@ summary = [
   'GTK+ @0@ (@1@)'.format(gtk_version, gtk_api_version),
   '',
   '  Enabled backends: @0@'.format(pkg_targets.strip()),
-  '  Vulkan support: @0@'.format(have_vulkan),
-  '  Tests: @0@'.format(get_option('build-tests')),
-  '  Documentation: @0@'.format(get_option('documentation')),
-  '  Demos: @0@'.format(get_option('demos')),
+  '    Vulkan support: @0@'.format(have_vulkan),
+  '             Tests: @0@'.format(get_option('build-tests')),
+  '     Documentation: @0@'.format(get_option('documentation')),
+  '             Demos: @0@'.format(get_option('demos')),
+  'Directories:',
+  '            prefix: @0@'.format(gtk_prefix),
+  '        includedir: @0@'.format(gtk_includedir),
+  '            libdir: @0@'.format(gtk_libdir),
+  '           datadir: @0@'.format(gtk_datadir),
   '------',
   ''
 ]