[glib/meson-for-merge] Fix glib-genmarshal build with meson

[Matthias Clasen <matthiasc src gnome org>]

commit b8c8bb73b0683456b632cf8a49fa9d00568115b5
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jul 13 19:35:09 2017 -0400

    Fix glib-genmarshal build with meson
    
    This is no longer built from a C source, but a python file.

 gobject/glib-genmarshal.in |    2 +-
 gobject/meson.build        |   10 ++++++----
 2 files changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/gobject/glib-genmarshal.in b/gobject/glib-genmarshal.in
index 9a39a53..10e0e33 100755
--- a/gobject/glib-genmarshal.in
+++ b/gobject/glib-genmarshal.in
@@ -1,4 +1,4 @@
-#!@PYTHON@
+#!/usr/bin/env python3
 
 # pylint: disable=too-many-lines, missing-docstring, invalid-name
 
diff --git a/gobject/meson.build b/gobject/meson.build
index 962d689..0953284 100644
--- a/gobject/meson.build
+++ b/gobject/meson.build
@@ -85,11 +85,13 @@ gmarshal_strings = custom_target('gmarshal.strings',
     output : ['gmarshal.strings'],
     command : [python, '@INPUT0@', '@INPUT1@', '@OUTPUT@'])
 
-glib_genmarshal = executable('glib-genmarshal',
-  gmarshal_strings, 'glib-genmarshal.c',
+glib_genmarshal_conf = configuration_data()
+glib_genmarshal_conf.set('VERSION', glib_version)
+
+glib_genmarshal = configure_file(input : 'glib-genmarshal.in',
+  output : 'glib-genmarshal',
   install : true,
-  c_args : ['-DHAVE_CONFIG_H=1'],
-  dependencies : [libglib_dep, libgobject_dep])
+  install_dir : 'bin', configuration : glib_genmarshal_conf)
 
 install_data('gobject_gdb.py', install_dir : join_paths(glib_pkgdatadir + 'gdb'))
 gdb_conf = configuration_data()