[cluttermm] generate_extra_defs: Check the clutter_init() result.

[Murray Cumming <murrayc src gnome org>]

commit 83a450616f3a855ba85c90298f62f4717c4120ec
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Apr 4 08:56:27 2014 +0200

    generate_extra_defs: Check the clutter_init() result.
    
    This avoids a compiler warning.

 codegen/extradefs/generate_extra_defs_clutter.cc |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/codegen/extradefs/generate_extra_defs_clutter.cc 
b/codegen/extradefs/generate_extra_defs_clutter.cc
index 5c0ae2e..ac264c2 100644
--- a/codegen/extradefs/generate_extra_defs_clutter.cc
+++ b/codegen/extradefs/generate_extra_defs_clutter.cc
@@ -28,7 +28,10 @@
 
 int main(int argc, char** argv)
 {
-  clutter_init(&argc, &argv);
+  if(clutter_init(&argc, &argv) != CLUTTER_INIT_SUCCESS)
+  {
+    std::cerr << G_STRFUNC << ": clutter_init() failed." << std::endl;
+  }
 
   std::cout
     << get_defs(CLUTTER_TYPE_ACTOR)