[vte] build: Add missing file

[Christian Persch <chpe src gnome org>]

commit d3d01aa7fd190a80ef9e1c2d5f0531e0168db3dd
Author: Christian Persch <chpe src gnome org>
Date:   Mon Apr 15 10:49:24 2019 +0200

    build: Add missing file
    
    https://gitlab.gnome.org/GNOME/vte/issues/78#note_489465

 bindings/meson.build | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
---
diff --git a/bindings/meson.build b/bindings/meson.build
new file mode 100644
index 00000000..76ee9b0b
--- /dev/null
+++ b/bindings/meson.build
@@ -0,0 +1,23 @@
+# Copyright © 2018, 2019 Iñigo Martínez
+# Copyright © 2019 Christian Persch
+#
+# This library is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or (at your
+# option) any later version.
+#
+# This library is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+# General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library.  If not, see <https://www.gnu.org/licenses/>.
+
+if get_option('gir') and (get_option('gtk3') or get_option('gtk4'))
+  subdir('gir')
+endif
+
+if get_option('vapi') and get_option('gtk3')
+  subdir('vala')
+endif