[glib] Revert "G_DECLARE_*: be const-compliant"

[Emmanuele Bassi <ebassi src gnome org>]

commit 617189f28c5d3eb05d7d09fe453b6f98c87d8a40
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Jan 18 18:46:12 2016 +0000

    Revert "G_DECLARE_*: be const-compliant"
    
    This reverts commit 52f23db74ad58b822bafb0fdcac106489d864f8c.
    
    Constifying these macros make C++ compilers and GCC with -Wcast-qual
    warn during compilation of GLib and projects depending on GLib.
    
    Since using const with GObject instances is not a common coding
    practice, it's better to revert than trying to make every sigle GType
    function const-safe (and possibly add more compiler warnings in the
    process).
    
    https://bugzilla.gnome.org/show_bug.cgi?id=745068

 gobject/gtype.h |   20 ++++++++++----------
 1 files changed, 10 insertions(+), 10 deletions(-)
---
diff --git a/gobject/gtype.h b/gobject/gtype.h
index 25f5bc1..7c3936b 100644
--- a/gobject/gtype.h
+++ b/gobject/gtype.h
@@ -1395,9 +1395,9 @@ guint     g_type_get_type_registration_serial (void);
                                                                                                          \
   _GLIB_DEFINE_AUTOPTR_CHAINUP (ModuleObjName, ParentName)                                               \
                                                                                                          \
-  static inline ModuleObjName * MODULE##_##OBJ_NAME (gconstpointer ptr) {                                \
+  static inline ModuleObjName * MODULE##_##OBJ_NAME (gpointer ptr) {                                     \
     return G_TYPE_CHECK_INSTANCE_CAST (ptr, module_obj_name##_get_type (), ModuleObjName); }             \
-  static inline gboolean MODULE##_IS_##OBJ_NAME (gconstpointer ptr) {                                    \
+  static inline gboolean MODULE##_IS_##OBJ_NAME (gpointer ptr) {                                         \
     return G_TYPE_CHECK_INSTANCE_TYPE (ptr, module_obj_name##_get_type ()); }                            \
   G_GNUC_END_IGNORE_DEPRECATIONS
 
@@ -1486,15 +1486,15 @@ guint     g_type_get_type_registration_serial (void);
                                                                                                          \
   _GLIB_DEFINE_AUTOPTR_CHAINUP (ModuleObjName, ParentName)                                               \
                                                                                                          \
-  static inline ModuleObjName * MODULE##_##OBJ_NAME (gconstpointer ptr) {                                    
 \
+  static inline ModuleObjName * MODULE##_##OBJ_NAME (gpointer ptr) {                                     \
     return G_TYPE_CHECK_INSTANCE_CAST (ptr, module_obj_name##_get_type (), ModuleObjName); }             \
-  static inline ModuleObjName##Class * MODULE##_##OBJ_NAME##_CLASS (gconstpointer ptr) {                     
 \
+  static inline ModuleObjName##Class * MODULE##_##OBJ_NAME##_CLASS (gpointer ptr) {                      \
     return G_TYPE_CHECK_CLASS_CAST (ptr, module_obj_name##_get_type (), ModuleObjName##Class); }         \
-  static inline gboolean MODULE##_IS_##OBJ_NAME (gconstpointer ptr) {                                        
 \
+  static inline gboolean MODULE##_IS_##OBJ_NAME (gpointer ptr) {                                         \
     return G_TYPE_CHECK_INSTANCE_TYPE (ptr, module_obj_name##_get_type ()); }                            \
-  static inline gboolean MODULE##_IS_##OBJ_NAME##_CLASS (gconstpointer ptr) {                                
 \
+  static inline gboolean MODULE##_IS_##OBJ_NAME##_CLASS (gpointer ptr) {                                 \
     return G_TYPE_CHECK_CLASS_TYPE (ptr, module_obj_name##_get_type ()); }                               \
-  static inline ModuleObjName##Class * MODULE##_##OBJ_NAME##_GET_CLASS (gconstpointer ptr) {                 
 \
+  static inline ModuleObjName##Class * MODULE##_##OBJ_NAME##_GET_CLASS (gpointer ptr) {                  \
     return G_TYPE_INSTANCE_GET_CLASS (ptr, module_obj_name##_get_type (), ModuleObjName##Class); }       \
   G_GNUC_END_IGNORE_DEPRECATIONS
 
@@ -1564,11 +1564,11 @@ guint     g_type_get_type_registration_serial (void);
                                                                                                            \
   _GLIB_DEFINE_AUTOPTR_CHAINUP (ModuleObjName, PrerequisiteName)                                           \
                                                                                                            \
-  static inline ModuleObjName * MODULE##_##OBJ_NAME (gconstpointer ptr) {                                    
   \
+  static inline ModuleObjName * MODULE##_##OBJ_NAME (gpointer ptr) {                                       \
     return G_TYPE_CHECK_INSTANCE_CAST (ptr, module_obj_name##_get_type (), ModuleObjName); }               \
-  static inline gboolean MODULE##_IS_##OBJ_NAME (gconstpointer ptr) {                                        
   \
+  static inline gboolean MODULE##_IS_##OBJ_NAME (gpointer ptr) {                                           \
     return G_TYPE_CHECK_INSTANCE_TYPE (ptr, module_obj_name##_get_type ()); }                              \
-  static inline ModuleObjName##Interface * MODULE##_##OBJ_NAME##_GET_IFACE (gconstpointer ptr) {             
   \
+  static inline ModuleObjName##Interface * MODULE##_##OBJ_NAME##_GET_IFACE (gpointer ptr) {                \
     return G_TYPE_INSTANCE_GET_INTERFACE (ptr, module_obj_name##_get_type (), ModuleObjName##Interface); } \
   G_GNUC_END_IGNORE_DEPRECATIONS