[gtk+] Add internal versions of g_return_[val_]_if_fail

[Alexander Larsson <alexl src gnome org>]

commit 5833b8495e77b6b21af5a996feec5c4c6c7925ed
Author: Alexander Larsson <alexl redhat com>
Date:   Mon Dec 3 13:25:14 2012 +0100

    Add internal versions of g_return_[val_]_if_fail
    
    These are only enabled on debug=yes, so not by default
    in released tarballs.

 gtk/gtkprivate.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkprivate.h b/gtk/gtkprivate.h
index 746103d..5b05f5b 100644
--- a/gtk/gtkprivate.h
+++ b/gtk/gtkprivate.h
@@ -37,6 +37,16 @@ G_BEGIN_DECLS
 #define GTK_PARAM_WRITABLE G_PARAM_WRITABLE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
 #define GTK_PARAM_READWRITE G_PARAM_READWRITE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
 
+#ifdef G_DISABLE_CAST_CHECKS
+/* This is true for debug no and minimum */
+#define gtk_internal_return_if_fail(__expr) G_STMT_START{ (void)0; }G_STMT_END
+#define gtk_internal_return_val_if_fail(__expr, __val) G_STMT_START{ (void)0; }G_STMT_END
+#else
+/* This is true for debug yes */
+#define gtk_internal_return_if_fail(__expr) g_return_if_fail(__expr)
+#define gtk_internal_return_val_if_fail(__expr, __val) g_return_val_if_fail(__expr, __val)
+#endif
+
 const gchar * _gtk_get_datadir            (void);
 const gchar * _gtk_get_libdir             (void);
 const gchar * _gtk_get_sysconfdir         (void);