gobject.h: Use correct format specifier for __LINE__

GCC 5.0, with its new -Wformat-signedness, warns about the sign being
different between a type and the format string in printf-format
messages, leading to compiler warnings with G_OBJECT_WARN_INVALID_PSPEC.
In other uses of __LINE__ inside GLib, %d is used, and GCC seems to
expect a format specifier of %d as well:
https://gcc.gnu.org/onlinedocs/cpp/Standard-Predefined-Macros.html

https://bugzilla.gnome.org/show_bug.cgi?id=744263

diff --git a/gobject/gobject.h b/gobject/gobject.h
index 70a99cc..a889d3c 100644 (file)
--- a/gobject/gobject.h
+++ b/gobject/gobject.h
@@ -627,7 +627,7 @@ G_STMT_START { \
   GObject *_glib__object = (GObject*) (object); \
   GParamSpec *_glib__pspec = (GParamSpec*) (pspec); \
   guint _glib__property_id = (property_id); \
-  g_warning ("%s:%u: invalid %s id %u for \"%s\" of type '%s' in '%s'", \
+  g_warning ("%s:%d: invalid %s id %u for \"%s\" of type '%s' in '%s'", \
              __FILE__, __LINE__, \
              (pname), \
              _glib__property_id, \