[gnome-builder] meson-toolchain-edition: ensure that the directory exists before the toolchain file

[Corentin Noël <corentinnoel src gnome org>]

commit 77bdac50a2ff8522d75e07c09c4e828a7f596c2e
Author: Corentin Noël <corentin noel collabora com>
Date:   Wed Sep 26 11:32:56 2018 +0200

    meson-toolchain-edition: ensure that the directory exists before the toolchain file
    
    Closes #641
    Closes #581

 src/plugins/meson/gbp-meson-toolchain-edition-preferences-addin.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/src/plugins/meson/gbp-meson-toolchain-edition-preferences-addin.c 
b/src/plugins/meson/gbp-meson-toolchain-edition-preferences-addin.c
index bdcfd23ea..eb947d1a5 100644
--- a/src/plugins/meson/gbp-meson-toolchain-edition-preferences-addin.c
+++ b/src/plugins/meson/gbp-meson-toolchain-edition-preferences-addin.c
@@ -49,6 +49,12 @@ meson_toolchain_edition_preferences_add_new (GbpMesonToolchainEditionPreferences
   g_assert (DZL_IS_PREFERENCES_BIN (emitter));
 
   user_folder_path = g_build_filename (g_get_user_data_dir (), "meson", "cross", NULL);
+  if (g_mkdir_with_parents (user_folder_path, 0700) != 0)
+    {
+      g_critical ("Can't create %s", user_folder_path);
+      return;
+    }
+
   for (uint i = 0; i < UINT_MAX; i++)
     {
       g_autofree gchar *possible_target = g_strdup_printf ("new_file%u", i);