[gobject-introspection] gimarshallingtests: Don't unconditionally include config.h

[Colin Walters <walters src gnome org>]

commit 1c238c020f790f858a0b2fad6a1305d09198d4bf
Author: intrigeri <intrigeri debian org>
Date:   Fri Feb 13 16:20:14 2015 -0500

    gimarshallingtests: Don't unconditionally include config.h
    
    https://bugzilla.gnome.org/show_bug.cgi?id=738989

 tests/gimarshallingtests.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/tests/gimarshallingtests.c b/tests/gimarshallingtests.c
index 59b5ba9..c8f9774 100644
--- a/tests/gimarshallingtests.c
+++ b/tests/gimarshallingtests.c
@@ -2,7 +2,10 @@
  *vim: tabstop=4 shiftwidth=4 expandtab
  */
 
+/* This file gets installed, so we can't assume config.h is available */
+#ifdef HAVE_CONFIG_H
 #include "config.h"
+#endif
 
 #include "gimarshallingtests.h"