[gvfs] build: Define meson information early

[Ondrej Holy <oholy src gnome org>]

commit d4684f505d8f8cbd5d3f85c31dde9b225f769aa3
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Tue Dec 18 08:49:07 2018 +0100

    build: Define meson information early
    
    The used meson modules, default directories and includes have been
    moved to the start of the build file, just after project related
    information, so they are available early.
    
    The way `po` directory path is defined has also been changed to
    avoid the use of the `source_root` function.

 meson.build | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)
---
diff --git a/meson.build b/meson.build
index ce573125..787be552 100644
--- a/meson.build
+++ b/meson.build
@@ -29,6 +29,17 @@ gvfs_namespace = 'org.gtk.vfs'
 
 gvfs_debug = get_option('buildtype').contains('debug')
 
+gnome = import('gnome')
+i18n = import('i18n')
+pkg = import('pkgconfig')
+
+po_dir = meson.current_source_dir() / 'po'
+
+top_inc = include_directories('.')
+
+service_conf = configuration_data()
+service_conf.set('libexecdir', gvfs_prefix / gvfs_libexecdir)
+
 cc = meson.get_compiler('c')
 
 config_h = configuration_data()
@@ -453,17 +464,6 @@ endif
 enable_devel_utils = get_option('devel_utils')
 enable_installed_tests = get_option('installed_tests')
 
-gnome = import('gnome')
-i18n = import('i18n')
-pkg = import('pkgconfig')
-
-service_conf = configuration_data()
-service_conf.set('libexecdir', gvfs_prefix / gvfs_libexecdir)
-
-po_dir = meson.source_root() / 'po'
-
-top_inc = include_directories('.')
-
 subdir('common')
 subdir('metadata')
 subdir('client')