gtk: Stop using g_slice

79 files changed, 287 insertions, 281 deletions

diff --git a/gtk/gtkaboutdialog.c b/gtk/gtkaboutdialog.c
index 1160f8cf9c..823c58a7ae 100644
--- a/gtk/gtkaboutdialog.c
+++ b/gtk/gtkaboutdialog.c
@@ -759,7 +759,7 @@ destroy_credit_section (gpointer data)
   CreditSection *cs = data;
   g_free (cs->heading);
   g_strfreev (cs->people);
-  g_slice_free (CreditSection, data);
+  g_free (data);
 }
 
 static void
@@ -2324,7 +2324,7 @@ gtk_about_dialog_add_credit_section (GtkAboutDialog  *about,
   g_return_if_fail (section_name != NULL);
   g_return_if_fail (people != NULL);
 
-  new_entry = g_slice_new (CreditSection);
+  new_entry = g_new (CreditSection, 1);
   new_entry->heading = g_strdup ((char *)section_name);
   new_entry->people = g_strdupv ((char **)people);
 
diff --git a/gtk/gtkactionmuxer.c b/gtk/gtkactionmuxer.c
index 7af7bb413b..5fe2916dfd 100644
--- a/gtk/gtkactionmuxer.c
+++ b/gtk/gtkactionmuxer.c
@@ -961,7 +961,7 @@ gtk_action_muxer_register_observer (GtkActionObservable *observable,
 
   if (action == NULL)
     {
-      action = g_slice_new (Action);
+      action = g_new (Action, 1);
       action->muxer = muxer;
       action->fullname = g_strdup (name);
       action->watchers = NULL;
@@ -1023,7 +1023,7 @@ gtk_action_muxer_free_group (gpointer data)
   g_object_unref (group->group);
   g_free (group->prefix);
 
-  g_slice_free (Group, group);
+  g_free (group);
 }
 
 static void
@@ -1038,7 +1038,7 @@ gtk_action_muxer_free_action (gpointer data)
   g_slist_free (action->watchers);
   g_free (action->fullname);
 
-  g_slice_free (Action, action);
+  g_free (action);
 }
 
 static void
@@ -1276,7 +1276,7 @@ gtk_action_muxer_insert (GtkActionMuxer *muxer,
   if (!muxer->groups)
     muxer->groups = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, gtk_action_muxer_free_group);
 
-  group = g_slice_new0 (Group);
+  group = g_new0 (Group, 1);
   group->muxer = muxer;
   group->group = g_object_ref (action_group);
   group->prefix = g_strdup (prefix);
diff --git a/gtk/gtkapplication-quartz.c b/gtk/gtkapplication-quartz.c
index f4506ec441..a30d9b63d1 100644
--- a/gtk/gtkapplication-quartz.c
+++ b/gtk/gtkapplication-quartz.c
@@ -37,7 +37,7 @@ gtk_application_quartz_inhibitor_free (GtkApplicationQuartzInhibitor *inhibitor)
 {
   g_free (inhibitor->reason);
   g_clear_object (&inhibitor->window);
-  g_slice_free (GtkApplicationQuartzInhibitor, inhibitor);
+  g_free (inhibitor);
 }
 
 typedef GtkApplicationImplClass GtkApplicationImplQuartzClass;
@@ -286,7 +286,7 @@ gtk_application_impl_quartz_inhibit (GtkApplicationImpl         *impl,
   GtkApplicationImplQuartz *quartz = (GtkApplicationImplQuartz *) impl;
   GtkApplicationQuartzInhibitor *inhibitor;
 
-  inhibitor = g_slice_new (GtkApplicationQuartzInhibitor);
+  inhibitor = g_new (GtkApplicationQuartzInhibitor, 1);
   inhibitor->cookie = ++quartz->next_cookie;
   inhibitor->flags = flags;
   inhibitor->reason = g_strdup (reason);
diff --git a/gtk/gtkapplication-wayland.c b/gtk/gtkapplication-wayland.c
index 5d56f45e75..48c5183788 100644
--- a/gtk/gtkapplication-wayland.c
+++ b/gtk/gtkapplication-wayland.c
@@ -55,7 +55,7 @@ typedef struct
 static void
 gtk_application_wayland_inhibitor_free (GtkApplicationWaylandInhibitor *inhibitor)
 {
-  g_slice_free (GtkApplicationWaylandInhibitor, inhibitor);
+  g_free (inhibitor);
 }
 
 typedef struct
@@ -127,7 +127,7 @@ gtk_application_impl_wayland_inhibit (GtkApplicationImpl         *impl,
   if (!flags)
     return 0;
 
-  inhibitor = g_slice_new0 (GtkApplicationWaylandInhibitor);
+  inhibitor = g_new0 (GtkApplicationWaylandInhibitor, 1);
   inhibitor->cookie = ++wayland->next_cookie;
   inhibitor->flags = flags;
   wayland->inhibitors = g_slist_prepend (wayland->inhibitors, inhibitor);
diff --git a/gtk/gtkbitset.c b/gtk/gtkbitset.c
index 1ad8f54e82..1017e99815 100644
--- a/gtk/gtkbitset.c
+++ b/gtk/gtkbitset.c
@@ -92,7 +92,7 @@ gtk_bitset_unref (GtkBitset *self)
     return;
 
   ra_clear (&self->roaring.high_low_container);
-  g_slice_free (GtkBitset, self);
+  g_free (self);
 }
 
 /**
@@ -271,7 +271,7 @@ gtk_bitset_new_empty (void)
 {
   GtkBitset *self;
 
-  self = g_slice_new0 (GtkBitset);
+  self = g_new0 (GtkBitset, 1);
 
   self->ref_count = 1;
 
diff --git a/gtk/gtkbookmarksmanager.c b/gtk/gtkbookmarksmanager.c
index ff13ea493e..2b65e4219c 100644
--- a/gtk/gtkbookmarksmanager.c
+++ b/gtk/gtkbookmarksmanager.c
@@ -39,7 +39,7 @@ _gtk_bookmark_free (gpointer data)
 
   g_object_unref (bookmark->file);
   g_free (bookmark->label);
-  g_slice_free (GtkBookmark, bookmark);
+  g_free (bookmark);
 }
 
 static void
@@ -105,7 +105,7 @@ parse_bookmarks (const char *contents)
       if (!g_utf8_validate (lines[i], -1, NULL))
 	continue;
 
-      bookmark = g_slice_new0 (GtkBookmark);
+      bookmark = g_new0 (GtkBookmark, 1);
 
       if ((space = strchr (lines[i], ' ')) != NULL)
 	{
@@ -419,7 +419,7 @@ _gtk_bookmarks_manager_insert_bookmark (GtkBookmarksManager *manager,
       return FALSE;
     }
 
-  bookmark = g_slice_new0 (GtkBookmark);
+  bookmark = g_new0 (GtkBookmark, 1);
   bookmark->file = g_object_ref (file);
 
   manager->bookmarks = g_slist_insert (manager->bookmarks, bookmark, position);
diff --git a/gtk/gtkborder.c b/gtk/gtkborder.c
index 443a90687e..ce15b9bf13 100644
--- a/gtk/gtkborder.c
+++ b/gtk/gtkborder.c
@@ -37,7 +37,7 @@
 GtkBorder *
 gtk_border_new (void)
 {
-  return g_slice_new0 (GtkBorder);
+  return g_new0 (GtkBorder, 1);
 }
 
 /**
@@ -51,9 +51,13 @@ gtk_border_new (void)
 GtkBorder *
 gtk_border_copy (const GtkBorder *border_)
 {
+  GtkBorder *copy;
+
   g_return_val_if_fail (border_ != NULL, NULL);
 
-  return g_slice_dup (GtkBorder, border_);
+  copy = g_new0 (GtkBorder, 1);
+  memcpy (copy, border_, sizeof (GtkBorder));
+  return copy;
 }
 
 /**
@@ -65,7 +69,7 @@ gtk_border_copy (const GtkBorder *border_)
 void
 gtk_border_free (GtkBorder *border_)
 {
-  g_slice_free (GtkBorder, border_);
+  g_free (border_);
 }
 
 G_DEFINE_BOXED_TYPE (GtkBorder, gtk_border,
diff --git a/gtk/gtkbuilder-menus.c b/gtk/gtkbuilder-menus.c
index fcf8731802..7855885173 100644
--- a/gtk/gtkbuilder-menus.c
+++ b/gtk/gtkbuilder-menus.c
@@ -55,7 +55,7 @@ gtk_builder_menu_push_frame (GtkBuilderMenuState *state,
 {
   struct frame *new;
 
-  new = g_slice_new (struct frame);
+  new = g_new (struct frame, 1);
   *new = state->frame;
 
   state->frame.menu = menu;
@@ -77,7 +77,7 @@ gtk_builder_menu_pop_frame (GtkBuilderMenuState *state)
 
   state->frame = *prev;
 
-  g_slice_free (struct frame, prev);
+  g_free (prev);
 }
 
 static void
@@ -335,7 +335,7 @@ gtk_builder_menu_error (GtkBuildableParseContext *context,
 
       state->frame = *prev;
 
-      g_slice_free (struct frame, prev);
+      g_free (prev);
     }
 
   if (state->string)
@@ -347,7 +347,7 @@ gtk_builder_menu_error (GtkBuildableParseContext *context,
   g_free (state->attribute);
   g_free (state->context);
 
-  g_slice_free (GtkBuilderMenuState, state);
+  g_free (state);
 }
 
 static GtkBuildableParser gtk_builder_menu_subparser =
@@ -368,7 +368,7 @@ _gtk_builder_menu_start (ParserData   *parser_data,
   GtkBuilderMenuState *state;
   char *id;
 
-  state = g_slice_new0 (GtkBuilderMenuState);
+  state = g_new0 (GtkBuilderMenuState, 1);
   state->parser_data = parser_data;
   gtk_buildable_parse_context_push (&parser_data->ctx, &gtk_builder_menu_subparser, state);
 
@@ -394,5 +394,5 @@ _gtk_builder_menu_end (ParserData *parser_data)
   g_assert (state->frame.prev == NULL);
   g_assert (state->frame.item == NULL);
   g_assert (state->frame.menu == NULL);
-  g_slice_free (GtkBuilderMenuState, state);
+  g_free (state);
 }
diff --git a/gtk/gtkbuilder.c b/gtk/gtkbuilder.c
index 1ae1f3e81a..fd221f79c8 100644
--- a/gtk/gtkbuilder.c
+++ b/gtk/gtkbuilder.c
@@ -587,7 +587,7 @@ gtk_builder_get_parameters (GtkBuilder         *builder,
 
               prop->applied = TRUE;
 
-              property = g_slice_new (DelayedProperty);
+              property = g_new (DelayedProperty, 1);
               property->pspec = prop->pspec;
               property->object = g_strdup (object_name);
               property->value = g_strdup (prop->text->str);
@@ -1096,7 +1096,7 @@ gtk_builder_apply_delayed_properties (GtkBuilder  *builder,
 
       g_free (property->value);
       g_free (property->object);
-      g_slice_free (DelayedProperty, property);
+      g_free (property);
     }
   g_slist_free (props);
 
diff --git a/gtk/gtkbuilderparser.c b/gtk/gtkbuilderparser.c
index 1d2d0b3d0b..a1a7bd68c0 100644
--- a/gtk/gtkbuilderparser.c
+++ b/gtk/gtkbuilderparser.c
@@ -527,7 +527,7 @@ parse_requires (ParserData   *data,
   version_minor = g_ascii_strtoll (split[1], NULL, 10);
   g_strfreev (split);
 
-  req_info = g_slice_new0 (RequiresInfo);
+  req_info = g_new0 (RequiresInfo, 1);
   req_info->library = g_strdup (library);
   req_info->major = version_major;
   req_info->minor = version_minor;
@@ -659,7 +659,7 @@ parse_object (GtkBuildableParseContext  *context,
         }
     }
 
-  object_info = g_slice_new0 (ObjectInfo);
+  object_info = g_new0 (ObjectInfo, 1);
   object_info->tag_type = TAG_OBJECT;
   object_info->type = object_type;
   object_info->oclass = g_type_class_ref (object_type);
@@ -766,7 +766,7 @@ parse_template (GtkBuildableParseContext  *context,
 
   ++data->cur_object_level;
 
-  object_info = g_slice_new0 (ObjectInfo);
+  object_info = g_new0 (ObjectInfo, 1);
   object_info->tag_type = TAG_TEMPLATE;
   object_info->type = parsed_type;
   object_info->oclass = g_type_class_ref (parsed_type);
@@ -802,7 +802,7 @@ free_object_info (ObjectInfo *info)
     g_ptr_array_free (info->properties, TRUE);
   g_free (info->constructor);
   g_free (info->id);
-  g_slice_free (ObjectInfo, info);
+  g_free (info);
 }
 
 static void
@@ -836,7 +836,7 @@ parse_child (ParserData  *data,
       return;
     }
 
-  child_info = g_slice_new0 (ChildInfo);
+  child_info = g_new0 (ChildInfo, 1);
   child_info->tag_type = TAG_CHILD;
   child_info->type = g_strdup (type);
   child_info->internal_child = g_strdup (internal_child);
@@ -851,7 +851,7 @@ free_child_info (ChildInfo *info)
 {
   g_free (info->type);
   g_free (info->internal_child);
-  g_slice_free (ChildInfo, info);
+  g_free (info);
 }
 
 static void
@@ -924,7 +924,7 @@ parse_property (ParserData   *data,
     {
       BindingInfo *binfo;
 
-      binfo = g_slice_new0 (BindingInfo);
+      binfo = g_new0 (BindingInfo, 1);
       binfo->tag_type = TAG_BINDING;
       binfo->target = NULL;
       binfo->target_pspec = pspec;
@@ -944,7 +944,7 @@ parse_property (ParserData   *data,
       return;
     }
 
-  info = g_slice_new0 (PropertyInfo);
+  info = g_new0 (PropertyInfo, 1);
   info->tag_type = TAG_PROPERTY;
   info->pspec = pspec;
   info->text = g_string_new ("");
@@ -1022,7 +1022,7 @@ parse_binding (ParserData   *data,
     }
 
 
-  info = g_slice_new0 (BindingExpressionInfo);
+  info = g_new0 (BindingExpressionInfo, 1);
   info->tag_type = TAG_BINDING_EXPRESSION;
   info->target = NULL;
   info->target_pspec = pspec;
@@ -1044,7 +1044,7 @@ free_property_info (PropertyInfo *info)
     }
   g_string_free (info->text, TRUE);
   g_free (info->context);
-  g_slice_free (PropertyInfo, info);
+  g_free (info);
 }
 
 static void
@@ -1075,7 +1075,7 @@ free_expression_info (ExpressionInfo *info)
       g_assert_not_reached ();
       break;
     }
-  g_slice_free (ExpressionInfo, info);
+  g_free (info);
 }
 
 static gboolean
@@ -1161,7 +1161,7 @@ parse_constant_expression (ParserData   *data,
         }
     }
 
-  info = g_slice_new0 (ExpressionInfo);
+  info = g_new0 (ExpressionInfo, 1);
   info->tag_type = TAG_EXPRESSION;
   info->expression_type = EXPRESSION_CONSTANT;
   info->constant.type = type;
@@ -1221,7 +1221,7 @@ parse_closure_expression (ParserData   *data,
         swapped = FALSE;
     }
 
-  info = g_slice_new0 (ExpressionInfo);
+  info = g_new0 (ExpressionInfo, 1);
   info->tag_type = TAG_EXPRESSION;
   info->expression_type = EXPRESSION_CLOSURE;
   info->closure.type = type;
@@ -1277,7 +1277,7 @@ parse_lookup_expression (ParserData   *data,
         }
     }
 
-  info = g_slice_new0 (ExpressionInfo);
+  info = g_new0 (ExpressionInfo, 1);
   info->tag_type = TAG_EXPRESSION;
   info->expression_type = EXPRESSION_PROPERTY;
   info->property.this_type = type;
@@ -1513,7 +1513,7 @@ parse_signal (ParserData   *data,
         swapped = FALSE;
     }
 
-  info = g_slice_new0 (SignalInfo);
+  info = g_new0 (SignalInfo, 1);
   info->id = id;
   info->detail = detail;
   info->handler = g_strdup (handler);
@@ -1535,7 +1535,7 @@ _free_signal_info (SignalInfo *info,
   g_free (info->handler);
   g_free (info->connect_object_name);
   g_free (info->object_name);
-  g_slice_free (SignalInfo, info);
+  g_free (info);
 }
 
 void
@@ -1544,7 +1544,7 @@ _free_binding_info (BindingInfo *info,
 {
   g_free (info->source);
   g_free (info->source_property);
-  g_slice_free (BindingInfo, info);
+  g_free (info);
 }
 
 void
@@ -1553,7 +1553,7 @@ free_binding_expression_info (BindingExpressionInfo *info)
   if (info->expr)
     free_expression_info (info->expr);
   g_free (info->object_name);
-  g_slice_free (BindingExpressionInfo, info);
+  g_free (info);
 }
 
 static void
@@ -1561,7 +1561,7 @@ free_requires_info (RequiresInfo *info,
                     gpointer      user_data)
 {
   g_free (info->library);
-  g_slice_free (RequiresInfo, info);
+  g_free (info);
 }
 
 static void
@@ -1604,7 +1604,7 @@ create_subparser (GObject       *object,
 {
   SubParser *subparser;
 
-  subparser = g_slice_new0 (SubParser);
+  subparser = g_new0 (SubParser, 1);
   subparser->object = object;
   subparser->child = child;
   subparser->tagname = g_strdup (element_name);
@@ -1620,7 +1620,7 @@ static void
 free_subparser (SubParser *subparser)
 {
   g_free (subparser->tagname);
-  g_slice_free (SubParser, subparser);
+  g_free (subparser);
 }
 
 static gboolean
@@ -2141,7 +2141,7 @@ text (GtkBuildableParseContext  *context,
         text_len--;
       if (expr_info->property.expression == NULL && text_len > 0)
         {
-          ExpressionInfo *constant = g_slice_new0 (ExpressionInfo);
+          ExpressionInfo *constant = g_new0 (ExpressionInfo, 1);
           constant->tag_type = TAG_EXPRESSION;
           constant->expression_type = EXPRESSION_CONSTANT;
           constant->constant.type = G_TYPE_INVALID;
diff --git a/gtk/gtkbuilderprecompile.c b/gtk/gtkbuilderprecompile.c
index 398fd75eb2..9db86e06e0 100644
--- a/gtk/gtkbuilderprecompile.c
+++ b/gtk/gtkbuilderprecompile.c
@@ -34,7 +34,6 @@ typedef enum
 
 /* All strings are owned by the string chunk */
 typedef struct {
-  /* Must be first for g_slice_free_chain() */
   GList link;
 
   const char *string;
@@ -82,7 +81,7 @@ record_data_node_new (RecordDataElement *parent,
                       RecordDataType     type,
                       gsize              size)
 {
-  RecordDataNode *node = g_slice_alloc0 (size);
+  RecordDataNode *node = g_malloc0 (size);
 
   node->type = type;
   node->link.data = node;
@@ -163,12 +162,11 @@ record_data_node_free (RecordDataNode *node)
           l = next;
         }
 
-      g_slice_free1 (sizeof (RecordDataElement) +
-                     sizeof (RecordDataString) * element->n_attributes, element);
+      g_free (element);
       break;
     case RECORD_TYPE_TEXT:
       text = (RecordDataText *)node;
-      g_slice_free (RecordDataText, text);
+      g_free (text);
       break;
     case RECORD_TYPE_END_ELEMENT:
     default:
@@ -234,7 +232,7 @@ record_data_string_lookup (RecordData *data,
       return s;
     }
 
-  s = g_slice_new (RecordDataString);
+  s = g_new (RecordDataString, 1);
   /* The string is zero terminated */
   s->string = g_string_chunk_insert_len (data->chunks, str, len);
   s->len = len;
@@ -474,6 +472,7 @@ _gtk_buildable_parser_precompile (const char  *text,
   GList *l;
   GString *marshaled;
   int offset;
+  RecordDataString *node;
 
   data.strings = g_hash_table_new (record_data_string_hash, record_data_string_equal);
   data.chunks = g_string_chunk_new (512);
@@ -528,9 +527,14 @@ _gtk_buildable_parser_precompile (const char  *text,
 
   marshal_root (marshaled, &data.root->base);
 
-  g_slice_free_chain (RecordDataString,
-                      (RecordDataString *)data.string_list.head,
-                      link.next);
+  node = (RecordDataString *) data.string_list.head;
+  while (node)
+    {
+      RecordDataString *next = (RecordDataString *) node->link.next;
+      g_free (node);
+      node = next;
+    }
+
   record_data_node_free (&data.root->base);
   g_string_chunk_free (data.chunks);
   g_hash_table_destroy (data.strings);
diff --git a/gtk/gtkconstraintvflparser.c b/gtk/gtkconstraintvflparser.c
index 79be0b0037..77f75ae681 100644
--- a/gtk/gtkconstraintvflparser.c
+++ b/gtk/gtkconstraintvflparser.c
@@ -768,7 +768,7 @@ vfl_view_free (VflView *view)
   view->prev_view = NULL;
   view->next_view = NULL;
 
-  g_slice_free (VflView, view);
+  g_free (view);
 }
 
 static void
@@ -878,7 +878,7 @@ gtk_constraint_vfl_parser_parse_line (GtkConstraintVflParser *parser,
         {
           if (parser->views == NULL && parser->leading_super == NULL)
             {
-              parser->leading_super = g_slice_new0 (VflView);
+              parser->leading_super = g_new0 (VflView, 1);
 
               parser->leading_super->name = g_strdup ("super");
               parser->leading_super->orientation = parser->orientation;
@@ -888,7 +888,7 @@ gtk_constraint_vfl_parser_parse_line (GtkConstraintVflParser *parser,
             }
           else if (parser->trailing_super == NULL)
             {
-              parser->trailing_super = g_slice_new0 (VflView);
+              parser->trailing_super = g_new0 (VflView, 1);
 
               parser->trailing_super->name = g_strdup ("super");
               parser->trailing_super->orientation = parser->orientation;
@@ -1040,7 +1040,7 @@ gtk_constraint_vfl_parser_parse_line (GtkConstraintVflParser *parser,
 
       if (*cur == '[')
         {
-          VflView *view = g_slice_new0 (VflView);
+          VflView *view = g_new0 (VflView, 1);
           char *tmp;
 
           view->orientation = parser->orientation;
diff --git a/gtk/gtkcssanimation.c b/gtk/gtkcssanimation.c
index 1d0c474d2c..26d8e1f30e 100644
--- a/gtk/gtkcssanimation.c
+++ b/gtk/gtkcssanimation.c
@@ -140,7 +140,7 @@ gtk_css_animation_free (GtkStyleAnimation *animation)
   _gtk_css_keyframes_unref (self->keyframes);
   _gtk_css_value_unref (self->ease);
 
-  g_slice_free (GtkCssAnimation, self);
+  g_free (self);
 }
 
 static const GtkStyleAnimationClass GTK_CSS_ANIMATION_CLASS = {
@@ -172,7 +172,7 @@ _gtk_css_animation_new (const char      *name,
   g_return_val_if_fail (ease != NULL, NULL);
   g_return_val_if_fail (iteration_count >= 0, NULL);
 
-  animation = g_slice_alloc (sizeof (GtkCssAnimation));
+  animation = g_new (GtkCssAnimation, 1);
   animation->parent.class = &GTK_CSS_ANIMATION_CLASS;
   animation->parent.ref_count = 1;
 
@@ -203,7 +203,7 @@ _gtk_css_animation_advance_with_play_state (GtkCssAnimation *source,
                                             gint64           timestamp,
                                             GtkCssPlayState  play_state)
 {
-  GtkCssAnimation *animation = g_slice_alloc (sizeof (GtkCssAnimation));
+  GtkCssAnimation *animation = g_new (GtkCssAnimation, 1);
   animation->parent.class = &GTK_CSS_ANIMATION_CLASS;
   animation->parent.ref_count = 1;
 
diff --git a/gtk/gtkcssarrayvalue.c b/gtk/gtkcssarrayvalue.c
index 28bea64088..fcc973e06a 100644
--- a/gtk/gtkcssarrayvalue.c
+++ b/gtk/gtkcssarrayvalue.c
@@ -35,11 +35,9 @@ gtk_css_value_array_free (GtkCssValue *value)
   guint i;
 
   for (i = 0; i < value->n_values; i++)
-    {
-      _gtk_css_value_unref (value->values[i]);
-    }
+    _gtk_css_value_unref (value->values[i]);
 
-  g_slice_free1 (sizeof (GtkCssValue) + sizeof (GtkCssValue *) * (value->n_values - 1), value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssbgsizevalue.c b/gtk/gtkcssbgsizevalue.c
index eb54840016..b9ff4141e5 100644
--- a/gtk/gtkcssbgsizevalue.c
+++ b/gtk/gtkcssbgsizevalue.c
@@ -37,7 +37,7 @@ gtk_css_value_bg_size_free (GtkCssValue *value)
   if (value->y)
     _gtk_css_value_unref (value->y);
 
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssbordervalue.c b/gtk/gtkcssbordervalue.c
index a9b9ef0001..68f96d087f 100644
--- a/gtk/gtkcssbordervalue.c
+++ b/gtk/gtkcssbordervalue.c
@@ -38,7 +38,7 @@ gtk_css_value_border_free (GtkCssValue *value)
         _gtk_css_value_unref (value->values[i]);
     }
 
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcsscolorvalue.c b/gtk/gtkcsscolorvalue.c
index b326b9cae9..c4d2ecb685 100644
--- a/gtk/gtkcsscolorvalue.c
+++ b/gtk/gtkcsscolorvalue.c
@@ -90,7 +90,7 @@ gtk_css_value_color_free (GtkCssValue *color)
       break;
     }
 
-  g_slice_free (GtkCssValue, color);
+  g_free (color);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcsscornervalue.c b/gtk/gtkcsscornervalue.c
index b25e6a6fef..498f2505a8 100644
--- a/gtk/gtkcsscornervalue.c
+++ b/gtk/gtkcsscornervalue.c
@@ -33,7 +33,7 @@ gtk_css_value_corner_free (GtkCssValue *value)
   _gtk_css_value_unref (value->x);
   _gtk_css_value_unref (value->y);
 
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssdynamic.c b/gtk/gtkcssdynamic.c
index 5dc65101ab..75c49833fe 100644
--- a/gtk/gtkcssdynamic.c
+++ b/gtk/gtkcssdynamic.c
@@ -70,7 +70,7 @@ gtk_css_dynamic_is_static (GtkStyleAnimation *style_animation)
 static void
 gtk_css_dynamic_free (GtkStyleAnimation *animation)
 {
-  g_slice_free (GtkCssDynamic, (GtkCssDynamic *)animation);
+  g_free (animation);
 }
 
 static const GtkStyleAnimationClass GTK_CSS_DYNAMIC_CLASS = {
@@ -85,7 +85,7 @@ static const GtkStyleAnimationClass GTK_CSS_DYNAMIC_CLASS = {
 GtkStyleAnimation *
 gtk_css_dynamic_new (gint64 timestamp)
 {
-  GtkCssDynamic *dynamic = g_slice_alloc (sizeof (GtkCssDynamic));
+  GtkCssDynamic *dynamic = g_new (GtkCssDynamic, 1);
 
   dynamic->parent.class = &GTK_CSS_DYNAMIC_CLASS;
   dynamic->parent.ref_count = 1;
diff --git a/gtk/gtkcsseasevalue.c b/gtk/gtkcsseasevalue.c
index 5ea1c6285d..83327e1104 100644
--- a/gtk/gtkcsseasevalue.c
+++ b/gtk/gtkcsseasevalue.c
@@ -46,7 +46,7 @@ struct _GtkCssValue {
 static void
 gtk_css_value_ease_free (GtkCssValue *value)
 {
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssenumvalue.c b/gtk/gtkcssenumvalue.c
index dfb7a0d394..fcf613eb24 100644
--- a/gtk/gtkcssenumvalue.c
+++ b/gtk/gtkcssenumvalue.c
@@ -37,7 +37,7 @@ struct _GtkCssValue {
 static void
 gtk_css_value_enum_free (GtkCssValue *value)
 {
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssfiltervalue.c b/gtk/gtkcssfiltervalue.c
index ed334979cb..1178a7f2ce 100644
--- a/gtk/gtkcssfiltervalue.c
+++ b/gtk/gtkcssfiltervalue.c
@@ -296,11 +296,9 @@ gtk_css_value_filter_free (GtkCssValue *value)
   guint i;
 
   for (i = 0; i < value->n_filters; i++)
-    {
-      gtk_css_filter_clear (&value->filters[i]);
-    }
+    gtk_css_filter_clear (&value->filters[i]);
 
-  g_slice_free1 (sizeof (GtkCssValue) + sizeof (GtkCssFilter) * (value->n_filters - 1), value);
+  g_free (value);
 }
 
 /* returns TRUE if dest == src */
diff --git a/gtk/gtkcssfontfeaturesvalue.c b/gtk/gtkcssfontfeaturesvalue.c
index faedc8cf44..323af6992d 100644
--- a/gtk/gtkcssfontfeaturesvalue.c
+++ b/gtk/gtkcssfontfeaturesvalue.c
@@ -49,7 +49,7 @@ gtk_css_value_font_features_free (GtkCssValue *value)
 {
   g_hash_table_unref (value->features);
 
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssfontvariationsvalue.c b/gtk/gtkcssfontvariationsvalue.c
index 2ecae30ab0..3b9eae6dd5 100644
--- a/gtk/gtkcssfontvariationsvalue.c
+++ b/gtk/gtkcssfontvariationsvalue.c
@@ -48,7 +48,7 @@ gtk_css_value_font_variations_free (GtkCssValue *value)
 {
   g_hash_table_unref (value->axes);
 
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssimagevalue.c b/gtk/gtkcssimagevalue.c
index 933557f65f..1443601cc0 100644
--- a/gtk/gtkcssimagevalue.c
+++ b/gtk/gtkcssimagevalue.c
@@ -30,7 +30,7 @@ static void
 gtk_css_value_image_free (GtkCssValue *value)
 {
   g_object_unref (value->image);
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcsskeyframes.c b/gtk/gtkcsskeyframes.c
index 89c4b0b409..68191d476c 100644
--- a/gtk/gtkcsskeyframes.c
+++ b/gtk/gtkcsskeyframes.c
@@ -75,7 +75,7 @@ _gtk_css_keyframes_unref (GtkCssKeyframes *keyframes)
     }
   g_free (keyframes->values);
 
-  g_slice_free (GtkCssKeyframes, keyframes);
+  g_free (keyframes);
 }
 
 static guint
@@ -178,7 +178,7 @@ gtk_css_keyframes_alloc (void)
 {
   GtkCssKeyframes *keyframes;
 
-  keyframes = g_slice_new0 (GtkCssKeyframes);
+  keyframes = g_new0 (GtkCssKeyframes, 1);
   keyframes->ref_count = 1;
 
   return keyframes;
diff --git a/gtk/gtkcsslineheightvalue.c b/gtk/gtkcsslineheightvalue.c
index 4472f503bc..c89d0a1ab0 100644
--- a/gtk/gtkcsslineheightvalue.c
+++ b/gtk/gtkcsslineheightvalue.c
@@ -35,7 +35,7 @@ static void
 gtk_css_value_line_height_free (GtkCssValue *value)
 {
   _gtk_css_value_unref (value->height);
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssnodestylecache.c b/gtk/gtkcssnodestylecache.c
index 46b3974341..dbb244698a 100644
--- a/gtk/gtkcssnodestylecache.c
+++ b/gtk/gtkcssnodestylecache.c
@@ -37,7 +37,7 @@ gtk_css_node_style_cache_new (GtkCssStyle *style)
 {
   GtkCssNodeStyleCache *result;
 
-  result = g_slice_new0 (GtkCssNodeStyleCache);
+  result = g_new0 (GtkCssNodeStyleCache, 1);
 
   result->ref_count = 1;
   result->style = g_object_ref (style);
@@ -65,7 +65,7 @@ gtk_css_node_style_cache_unref (GtkCssNodeStyleCache *cache)
   if (cache->children)
     g_hash_table_unref (cache->children);
 
-  g_slice_free (GtkCssNodeStyleCache, cache);
+  g_free (cache);
 }
 
 GtkCssStyle *
diff --git a/gtk/gtkcssnumbervalue.c b/gtk/gtkcssnumbervalue.c
index 270711b27c..3ab0e3e1cb 100644
--- a/gtk/gtkcssnumbervalue.c
+++ b/gtk/gtkcssnumbervalue.c
@@ -79,13 +79,9 @@ gtk_css_value_number_free (GtkCssValue *number)
 
       for (guint i = 0; i < n_terms; i++)
         _gtk_css_value_unref (number->calc.terms[i]);
-
-      g_slice_free1 (gtk_css_value_calc_get_size (n_terms), number);
-    }
-  else
-    {
-      g_slice_free (GtkCssValue, number);
     }
+
+  g_free (number);
 }
 
 static double
diff --git a/gtk/gtkcsspalettevalue.c b/gtk/gtkcsspalettevalue.c
index a5aab3d615..bbc5c1cf31 100644
--- a/gtk/gtkcsspalettevalue.c
+++ b/gtk/gtkcsspalettevalue.c
@@ -99,8 +99,7 @@ gtk_css_value_palette_free (GtkCssValue *value)
 
   g_free (value->color_names);
   g_free (value->color_values);
-
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcsspositionvalue.c b/gtk/gtkcsspositionvalue.c
index 4164d18ca2..3bcc291832 100644
--- a/gtk/gtkcsspositionvalue.c
+++ b/gtk/gtkcsspositionvalue.c
@@ -32,8 +32,7 @@ gtk_css_value_position_free (GtkCssValue *value)
 {
   _gtk_css_value_unref (value->x);
   _gtk_css_value_unref (value->y);
-
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssprovider.c b/gtk/gtkcssprovider.c
index bdcaadbcfd..5ace762e7a 100644
--- a/gtk/gtkcssprovider.c
+++ b/gtk/gtkcssprovider.c
@@ -318,7 +318,7 @@ gtk_css_scanner_destroy (GtkCssScanner *scanner)
   g_object_unref (scanner->provider);
   gtk_css_parser_unref (scanner->parser);
 
-  g_slice_free (GtkCssScanner, scanner);
+  g_free (scanner);
 }
 
 static void
@@ -356,7 +356,7 @@ gtk_css_scanner_new (GtkCssProvider *provider,
 {
   GtkCssScanner *scanner;
 
-  scanner = g_slice_new0 (GtkCssScanner);
+  scanner = g_new0 (GtkCssScanner, 1);
 
   g_object_ref (provider);
   scanner->provider = provider;
diff --git a/gtk/gtkcssrepeatvalue.c b/gtk/gtkcssrepeatvalue.c
index 26a7ac27fa..928c4ecba2 100644
--- a/gtk/gtkcssrepeatvalue.c
+++ b/gtk/gtkcssrepeatvalue.c
@@ -30,7 +30,7 @@ struct _GtkCssValue {
 static void
 gtk_css_value_repeat_free (GtkCssValue *value)
 {
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssshadowvalue.c b/gtk/gtkcssshadowvalue.c
index 66029dbff4..e670356550 100644
--- a/gtk/gtkcssshadowvalue.c
+++ b/gtk/gtkcssshadowvalue.c
@@ -108,7 +108,7 @@ gtk_css_value_shadow_free (GtkCssValue *value)
       shadow_value_unref (shadow);
     }
 
-  g_slice_free1 (sizeof (GtkCssValue) + sizeof (ShadowValue) * (value->n_shadows - 1), value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcssstringvalue.c b/gtk/gtkcssstringvalue.c
index b72427de11..b4cbb8600e 100644
--- a/gtk/gtkcssstringvalue.c
+++ b/gtk/gtkcssstringvalue.c
@@ -31,7 +31,7 @@ static void
 gtk_css_value_string_free (GtkCssValue *value)
 {
   g_free (value->string);
-  g_slice_free (GtkCssValue, value);
+  g_free (value);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcsstransformvalue.c b/gtk/gtkcsstransformvalue.c
index 636fd553cf..80ad89f278 100644
--- a/gtk/gtkcsstransformvalue.c
+++ b/gtk/gtkcsstransformvalue.c
@@ -266,11 +266,9 @@ gtk_css_value_transform_free (GtkCssValue *value)
   guint i;
 
   for (i = 0; i < value->n_transforms; i++)
-    {
-      gtk_css_transform_clear (&value->transforms[i]);
-    }
+    gtk_css_transform_clear (&value->transforms[i]);
 
-  g_slice_free1 (sizeof (GtkCssValue) + sizeof (GtkCssTransform) * (value->n_transforms - 1), value);
+  g_free (value);
 }
 
 /* returns TRUE if dest == src */
diff --git a/gtk/gtkcsstransition.c b/gtk/gtkcsstransition.c
index 98ef4b2f6a..a17ccc7d63 100644
--- a/gtk/gtkcsstransition.c
+++ b/gtk/gtkcsstransition.c
@@ -100,8 +100,7 @@ gtk_css_transition_free (GtkStyleAnimation *animation)
 
   gtk_css_value_unref (self->start);
   gtk_css_value_unref (self->ease);
-
-  g_slice_free (GtkCssTransition, self);
+  g_free (self);
 }
 
 static const GtkStyleAnimationClass GTK_CSS_TRANSITION_CLASS = {
@@ -120,7 +119,7 @@ gtk_css_transition_advance (GtkStyleAnimation    *style_animation,
   GtkCssTransition *source = (GtkCssTransition *)style_animation;
   GtkCssTransition *transition;
 
-  transition = g_slice_alloc (sizeof (GtkCssTransition));
+  transition = g_new (GtkCssTransition, 1);
   transition->parent.class = &GTK_CSS_TRANSITION_CLASS;
   transition->parent.ref_count = 1;
 
@@ -147,7 +146,7 @@ _gtk_css_transition_new (guint        property,
   g_return_val_if_fail (start != NULL, NULL);
   g_return_val_if_fail (ease != NULL, NULL);
 
-  transition = g_slice_alloc (sizeof (GtkCssTransition));
+  transition = g_new (GtkCssTransition, 1);
   transition->parent.class = &GTK_CSS_TRANSITION_CLASS;
   transition->parent.ref_count = 1;
 
diff --git a/gtk/gtkcssvalue.c b/gtk/gtkcssvalue.c
index e7f41fdac9..974a355ab5 100644
--- a/gtk/gtkcssvalue.c
+++ b/gtk/gtkcssvalue.c
@@ -142,7 +142,7 @@ _gtk_css_value_alloc (const GtkCssValueClass *klass,
 {
   GtkCssValue *value;
 
-  value = g_slice_alloc0 (size);
+  value = g_malloc0 (size);
 
   value->class = klass;
   value->ref_count = 1;
diff --git a/gtk/gtkdrop.c b/gtk/gtkdrop.c
index eac5995b1f..ee3788aae8 100644
--- a/gtk/gtkdrop.c
+++ b/gtk/gtkdrop.c
@@ -36,7 +36,7 @@ gtk_drop_free (gpointer data)
 {
   GtkDrop *self = data;
 
-  g_slice_free (GtkDrop, self);
+  g_free (self);
 }
 
 static GtkDrop *
@@ -51,7 +51,7 @@ gtk_drop_lookup (GdkDrop *drop)
   result = g_object_get_qdata (G_OBJECT (drop), drop_quark);
   if (result == NULL)
     {
-      result = g_slice_new0 (GtkDrop);
+      result = g_new0 (GtkDrop, 1);
       g_object_set_qdata_full (G_OBJECT (drop), drop_quark, result, gtk_drop_free);
     }
 
diff --git a/gtk/gtkentry.c b/gtk/gtkentry.c
index 1c0798ff97..d3f676fe4a 100644
--- a/gtk/gtkentry.c
+++ b/gtk/gtkentry.c
@@ -363,7 +363,7 @@ gtk_entry_buildable_custom_tag_start (GtkBuildable       *buildable,
     {
       GtkPangoAttributeParserData *parser_data;
 
-      parser_data = g_slice_new0 (GtkPangoAttributeParserData);
+      parser_data = g_new0 (GtkPangoAttributeParserData, 1);
       parser_data->builder = g_object_ref (builder);
       parser_data->object = (GObject *) g_object_ref (buildable);
       *parser = pango_parser;
@@ -395,7 +395,7 @@ gtk_entry_buildable_custom_finished (GtkBuildable *buildable,
 
       g_object_unref (data->object);
       g_object_unref (data->builder);
-      g_slice_free (GtkPangoAttributeParserData, data);
+      g_free (data);
     }
 }
 
@@ -1441,7 +1441,7 @@ gtk_entry_finalize (GObject *object)
 
       gtk_widget_unparent (icon_info->widget);
 
-      g_slice_free (EntryIconInfo, icon_info);
+      g_free (icon_info);
     }
 
   g_clear_pointer (&priv->progress_widget, gtk_widget_unparent);
@@ -1603,7 +1603,7 @@ construct_icon_info (GtkWidget            *widget,
 
   g_return_val_if_fail (priv->icons[icon_pos] == NULL, NULL);
 
-  icon_info = g_slice_new0 (EntryIconInfo);
+  icon_info = g_new0 (EntryIconInfo, 1);
   priv->icons[icon_pos] = icon_info;
 
   icon_info->widget = gtk_image_new ();
diff --git a/gtk/gtkexpression.c b/gtk/gtkexpression.c
index 8750782bdd..a7c4fe711e 100644
--- a/gtk/gtkexpression.c
+++ b/gtk/gtkexpression.c
@@ -2050,7 +2050,7 @@ free_binds (gpointer data)
       g_assert (bind->target == NULL);
       if (bind->watch)
         gtk_expression_watch_unwatch (bind->watch);
-      g_slice_free (GtkExpressionBind, bind);
+      g_free (bind);
     }
   g_slist_free (data);
 }
@@ -2070,7 +2070,7 @@ gtk_expression_bind_free (gpointer data)
       else
         g_object_weak_unref (bind->target, invalidate_binds, NULL);
 
-      g_slice_free (GtkExpressionBind, bind);
+      g_free (bind);
     }
   else
     {
@@ -2154,7 +2154,7 @@ gtk_expression_bind (GtkExpression *self,
       return NULL;
     }
 
-  bind = g_slice_new0 (GtkExpressionBind);
+  bind = g_new0 (GtkExpressionBind, 1);
   binds = g_object_steal_data (target, "gtk-expression-binds");
   if (binds == NULL)
     g_object_weak_ref (target, invalidate_binds, NULL);
diff --git a/gtk/gtkfilefilter.c b/gtk/gtkfilefilter.c
index 425d8d4ca7..4a18ab050f 100644
--- a/gtk/gtkfilefilter.c
+++ b/gtk/gtkfilefilter.c
@@ -225,7 +225,7 @@ filter_rule_free (FilterRule *rule)
     default:
       break;
     }
-  g_slice_free (FilterRule, rule);
+  g_free (rule);
 }
 
 static void
@@ -442,7 +442,7 @@ gtk_file_filter_buildable_custom_tag_start (GtkBuildable       *buildable,
 
   if (strcmp (tagname, "mime-types") == 0)
     {
-      data = g_slice_new0 (SubParserData);
+      data = g_new0 (SubParserData, 1);
       data->string = g_string_new ("");
       data->type = PARSE_MIME_TYPES;
       data->filter = GTK_FILE_FILTER (buildable);
@@ -453,7 +453,7 @@ gtk_file_filter_buildable_custom_tag_start (GtkBuildable       *buildable,
     }
   else if (strcmp (tagname, "patterns") == 0)
     {
-      data = g_slice_new0 (SubParserData);
+      data = g_new0 (SubParserData, 1);
       data->string = g_string_new ("");
       data->type = PARSE_PATTERNS;
       data->filter = GTK_FILE_FILTER (buildable);
@@ -464,7 +464,7 @@ gtk_file_filter_buildable_custom_tag_start (GtkBuildable       *buildable,
     }
   else if (strcmp (tagname, "suffixes") == 0)
     {
-      data = g_slice_new0 (SubParserData);
+      data = g_new0 (SubParserData, 1);
       data->string = g_string_new ("");
       data->type = PARSE_SUFFIXES;
       data->filter = GTK_FILE_FILTER (buildable);
@@ -491,7 +491,7 @@ gtk_file_filter_buildable_custom_tag_end (GtkBuildable *buildable,
       SubParserData *data = (SubParserData*)user_data;
 
       g_string_free (data->string, TRUE);
-      g_slice_free (SubParserData, data);
+      g_free (data);
     }
 }
 
@@ -621,7 +621,7 @@ gtk_file_filter_add_mime_type (GtkFileFilter *filter,
   g_return_if_fail (GTK_IS_FILE_FILTER (filter));
   g_return_if_fail (mime_type != NULL);
 
-  rule = g_slice_new (FilterRule);
+  rule = g_new (FilterRule, 1);
   rule->type = FILTER_RULE_MIME_TYPE;
   rule->u.content_types = g_new0 (char *, 2);
   rule->u.content_types[0] = g_content_type_from_mime_type (mime_type);
@@ -650,7 +650,7 @@ gtk_file_filter_add_pattern (GtkFileFilter *filter,
   g_return_if_fail (GTK_IS_FILE_FILTER (filter));
   g_return_if_fail (pattern != NULL);
 
-  rule = g_slice_new (FilterRule);
+  rule = g_new (FilterRule, 1);
   rule->type = FILTER_RULE_PATTERN;
   rule->u.pattern = g_strdup (pattern);
 
@@ -682,7 +682,7 @@ gtk_file_filter_add_suffix (GtkFileFilter *filter,
   g_return_if_fail (GTK_IS_FILE_FILTER (filter));
   g_return_if_fail (suffix != NULL);
 
-  rule = g_slice_new (FilterRule);
+  rule = g_new (FilterRule, 1);
   rule->type = FILTER_RULE_SUFFIX;
   rule->u.pattern = g_strconcat ("*.", suffix, NULL);
 
@@ -709,7 +709,7 @@ gtk_file_filter_add_pixbuf_formats (GtkFileFilter *filter)
 
   g_return_if_fail (GTK_IS_FILE_FILTER (filter));
 
-  rule = g_slice_new (FilterRule);
+  rule = g_new (FilterRule, 1);
   rule->type = FILTER_RULE_PIXBUF_FORMATS;
 
   array = g_ptr_array_new ();
diff --git a/gtk/gtkfilesystemmodel.c b/gtk/gtkfilesystemmodel.c
index c830751642..14354feaaf 100644
--- a/gtk/gtkfilesystemmodel.c
+++ b/gtk/gtkfilesystemmodel.c
@@ -435,7 +435,7 @@ add_file (GtkFileSystemModel *model,
   g_return_if_fail (G_IS_FILE (file));
   g_return_if_fail (G_IS_FILE_INFO (info));
 
-  node = g_slice_alloc0 (sizeof (FileModelNode));
+  node = g_new0 (FileModelNode, 1);
   node->file = g_object_ref (file);
   if (info)
     {
@@ -445,7 +445,7 @@ add_file (GtkFileSystemModel *model,
   node->frozen_add = model->frozen ? TRUE : FALSE;
 
   g_array_append_vals (model->files, node, 1);
-  g_slice_free1 (sizeof (FileModelNode), node);
+  g_free (node);
 
   position = model->files->len - 1;
 
diff --git a/gtk/gtkicontheme.c b/gtk/gtkicontheme.c
index 729f632852..f4191f9a77 100644
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@@ -1857,7 +1857,7 @@ free_unthemed_icon (UnthemedIcon *unthemed_icon)
 {
   g_free (unthemed_icon->svg_filename);
   g_free (unthemed_icon->no_svg_filename);
-  g_slice_free (UnthemedIcon, unthemed_icon);
+  g_free (unthemed_icon);
 }
 
 static inline void
@@ -1932,7 +1932,7 @@ add_unthemed_icon (GtkIconTheme *self,
     }
   else
     {
-      unthemed_icon = g_slice_new0 (UnthemedIcon);
+      unthemed_icon = g_new0 (UnthemedIcon, 1);
 
       unthemed_icon->is_resource = is_resource;
 
diff --git a/gtk/gtkkineticscrolling.c b/gtk/gtkkineticscrolling.c
index 1f02fe7993..b686525099 100644
--- a/gtk/gtkkineticscrolling.c
+++ b/gtk/gtkkineticscrolling.c
@@ -91,7 +91,7 @@ gtk_kinetic_scrolling_new (double lower,
 {
   GtkKineticScrolling *data;
 
-  data = g_slice_new0 (GtkKineticScrolling);
+  data = g_new0 (GtkKineticScrolling, 1);
   data->lower = lower;
   data->upper = upper;
   data->decel_friction = decel_friction;
@@ -155,7 +155,7 @@ gtk_kinetic_scrolling_update_size (GtkKineticScrolling *data,
 void
 gtk_kinetic_scrolling_free (GtkKineticScrolling *kinetic)
 {
-  g_slice_free (GtkKineticScrolling, kinetic);
+  g_free (kinetic);
 }
 
 static void
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index ee0c815d93..4798dcb09c 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -661,7 +661,7 @@ gtk_label_buildable_custom_tag_start (GtkBuildable       *buildable,
     {
       GtkPangoAttributeParserData *parser_data;
 
-      parser_data = g_slice_new0 (GtkPangoAttributeParserData);
+      parser_data = g_new0 (GtkPangoAttributeParserData, 1);
       parser_data->builder = g_object_ref (builder);
       parser_data->object = (GObject *) g_object_ref (buildable);
       *parser = pango_parser;
@@ -693,7 +693,7 @@ gtk_label_buildable_custom_finished (GtkBuildable *buildable,
 
       g_object_unref (data->object);
       g_object_unref (data->builder);
-      g_slice_free (GtkPangoAttributeParserData, data);
+      g_free (data);
     }
 }
 
diff --git a/gtk/gtklevelbar.c b/gtk/gtklevelbar.c
index 426f97f465..815fbf392b 100644
--- a/gtk/gtklevelbar.c
+++ b/gtk/gtklevelbar.c
@@ -204,7 +204,7 @@ static GtkLevelBarOffset *
 gtk_level_bar_offset_new (const char *name,
                           double       value)
 {
-  GtkLevelBarOffset *offset = g_slice_new0 (GtkLevelBarOffset);
+  GtkLevelBarOffset *offset = g_new0 (GtkLevelBarOffset, 1);
 
   offset->name = g_strdup (name);
   offset->value = value;
@@ -216,7 +216,7 @@ static void
 gtk_level_bar_offset_free (GtkLevelBarOffset *offset)
 {
   g_free (offset->name);
-  g_slice_free (GtkLevelBarOffset, offset);
+  g_free (offset);
 }
 
 static int
@@ -766,7 +766,7 @@ gtk_level_bar_buildable_custom_tag_start (GtkBuildable       *buildable,
   if (strcmp (tagname, "offsets") != 0)
     return FALSE;
 
-  data = g_slice_new0 (OffsetsParserData);
+  data = g_new0 (OffsetsParserData, 1);
   data->self = GTK_LEVEL_BAR (buildable);
   data->builder = builder;
   data->offsets = NULL;
@@ -805,7 +805,7 @@ gtk_level_bar_buildable_custom_finished (GtkBuildable *buildable,
     }
 
   g_list_free_full (data->offsets, (GDestroyNotify) gtk_level_bar_offset_free);
-  g_slice_free (OffsetsParserData, data);
+  g_free (data);
 }
 
 static void
diff --git a/gtk/gtklistitemmanager.c b/gtk/gtklistitemmanager.c
index 772b17d471..5da8966a4b 100644
--- a/gtk/gtklistitemmanager.c
+++ b/gtk/gtklistitemmanager.c
@@ -1413,7 +1413,7 @@ gtk_list_item_tracker_new (GtkListItemManager *self)
 
   g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), NULL);
 
-  tracker = g_slice_new0 (GtkListItemTracker);
+  tracker = g_new0 (GtkListItemTracker, 1);
 
   tracker->position = GTK_INVALID_LIST_POSITION;
 
@@ -1430,7 +1430,7 @@ gtk_list_item_tracker_free (GtkListItemManager *self,
 
   self->trackers = g_slist_remove (self->trackers, tracker);
 
-  g_slice_free (GtkListItemTracker, tracker);
+  g_free (tracker);
 
   gtk_list_item_manager_ensure_items (self, NULL, G_MAXUINT);
 
diff --git a/gtk/gtkmenutracker.c b/gtk/gtkmenutracker.c
index 4fccce4a02..c09997675b 100644
--- a/gtk/gtkmenutracker.c
+++ b/gtk/gtkmenutracker.c
@@ -377,7 +377,7 @@ gtk_menu_tracker_add_items (GtkMenuTracker         *tracker,
             {
               GtkMenuTrackerSection *fake_section;
 
-              fake_section = g_slice_new0 (GtkMenuTrackerSection);
+              fake_section = g_new0 (GtkMenuTrackerSection, 1);
               fake_section->is_fake = TRUE;
               fake_section->model = g_object_ref (item);
               fake_section->handler = g_signal_connect (item, "notify::is-visible",
@@ -467,7 +467,7 @@ gtk_menu_tracker_section_free (GtkMenuTrackerSection *section)
   g_slist_free_full (section->items, (GDestroyNotify) gtk_menu_tracker_section_free);
   g_free (section->action_namespace);
   g_object_unref (section->model);
-  g_slice_free (GtkMenuTrackerSection, section);
+  g_free (section);
 }
 
 static GtkMenuTrackerSection *
@@ -480,7 +480,7 @@ gtk_menu_tracker_section_new (GtkMenuTracker *tracker,
 {
   GtkMenuTrackerSection *section;
 
-  section = g_slice_new0 (GtkMenuTrackerSection);
+  section = g_new0 (GtkMenuTrackerSection, 1);
   section->model = g_object_ref (model);
   section->with_separators = with_separators;
   section->action_namespace = g_strdup (action_namespace);
@@ -560,7 +560,7 @@ gtk_menu_tracker_new (GtkActionObservable      *observable,
 {
   GtkMenuTracker *tracker;
 
-  tracker = g_slice_new (GtkMenuTracker);
+  tracker = g_new (GtkMenuTracker, 1);
   tracker->merge_sections = merge_sections;
   tracker->mac_os_mode = mac_os_mode;
   tracker->observable = g_object_ref (observable);
@@ -611,5 +611,5 @@ gtk_menu_tracker_free (GtkMenuTracker *tracker)
 {
   gtk_menu_tracker_section_free (tracker->toplevel);
   g_object_unref (tracker->observable);
-  g_slice_free (GtkMenuTracker, tracker);
+  g_free (tracker);
 }
diff --git a/gtk/gtkmultisorter.c b/gtk/gtkmultisorter.c
index ddbdb440cb..1ddf5824df 100644
--- a/gtk/gtkmultisorter.c
+++ b/gtk/gtkmultisorter.c
@@ -84,7 +84,7 @@ gtk_multi_sort_keys_free (GtkSortKeys *keys)
   for (i = 0; i < self->n_keys; i++)
     gtk_sort_keys_unref (self->keys[i].keys);
 
-  g_slice_free1 (sizeof (GtkMultiSortKeys) + self->n_keys * sizeof (GtkMultiSortKey), self);
+  g_free (self);
 }
 
 static int
diff --git a/gtk/gtknumericsorter.c b/gtk/gtknumericsorter.c
index 4f474ad14d..e029fcf0ec 100644
--- a/gtk/gtknumericsorter.c
+++ b/gtk/gtknumericsorter.c
@@ -81,7 +81,7 @@ gtk_numeric_sort_keys_free (GtkSortKeys *keys)
   GtkNumericSortKeys *self = (GtkNumericSortKeys *) keys;
 
   gtk_expression_unref (self->expression);
-  g_slice_free (GtkNumericSortKeys, self);
+  g_free (self);
 }
 
 #define COMPARE_FUNC(type, name, _a, _b) \
diff --git a/gtk/gtkpapersize.c b/gtk/gtkpapersize.c
index 81d13f8633..9a2ef889cd 100644
--- a/gtk/gtkpapersize.c
+++ b/gtk/gtkpapersize.c
@@ -195,7 +195,7 @@ gtk_paper_size_new_from_info (const PaperInfo *info)
 {
   GtkPaperSize *size;
 
-  size = g_slice_new0 (GtkPaperSize);
+  size = g_new0 (GtkPaperSize, 1);
   size->info = info;
   size->width = info->width;
   size->height = info->height;
@@ -238,7 +238,7 @@ gtk_paper_size_new (const char *name)
         }
       else
         {
-          size = g_slice_new0 (GtkPaperSize);
+          size = g_new0 (GtkPaperSize, 1);
 
           size->width = width;
           size->height = height;
@@ -256,7 +256,7 @@ gtk_paper_size_new (const char *name)
       else
         {
           g_warning ("Unknown paper size %s", name);
-          size = g_slice_new0 (GtkPaperSize);
+          size = g_new0 (GtkPaperSize, 1);
           size->name = g_strdup (name);
           size->display_name = g_strdup (name);
           /* Default to A4 size */
@@ -484,7 +484,7 @@ gtk_paper_size_new_custom (const char *name,
   g_return_val_if_fail (name != NULL, NULL);
   g_return_val_if_fail (unit != GTK_UNIT_NONE, NULL);
 
-  size = g_slice_new0 (GtkPaperSize);
+  size = g_new0 (GtkPaperSize, 1);
 
   size->name = g_strdup (name);
   size->display_name = g_strdup (display_name);
@@ -509,7 +509,7 @@ gtk_paper_size_copy (GtkPaperSize *other)
 {
   GtkPaperSize *size;
 
-  size = g_slice_new0 (GtkPaperSize);
+  size = g_new0 (GtkPaperSize, 1);
 
   size->info = other->info;
   if (other->name)
@@ -539,8 +539,7 @@ gtk_paper_size_free (GtkPaperSize *size)
   g_free (size->name);
   g_free (size->display_name);
   g_free (size->ppd_name);
-
-  g_slice_free (GtkPaperSize, size);
+  g_free (size);
 }
 
 /**
diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index df34858ac1..ff6558a108 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -825,7 +825,7 @@ on_bookmark_query_info_complete (GObject      *source,
 out:
   g_clear_object (&info);
   g_clear_error (&error);
-  g_slice_free (BookmarkQueryClosure, clos);
+  g_free (clos);
 }
 
 static gboolean
@@ -1365,7 +1365,7 @@ update_places (GtkPlacesSidebar *sidebar)
       if (_gtk_bookmarks_manager_get_is_builtin (sidebar->bookmarks_manager, root))
         continue;
 
-      clos = g_slice_new (BookmarkQueryClosure);
+      clos = g_new (BookmarkQueryClosure, 1);
       clos->sidebar = sidebar;
       clos->index = index;
       clos->is_native = is_native;
diff --git a/gtk/gtkrbtree.c b/gtk/gtkrbtree.c
index 4ccff54084..befe1cdbc9 100644
--- a/gtk/gtkrbtree.c
+++ b/gtk/gtkrbtree.c
@@ -117,7 +117,7 @@ gtk_rb_node_new (GtkRbTree *tree)
 {
   GtkRbNode *result;
 
-  result = g_slice_alloc0 (gtk_rb_node_get_size (tree));
+  result = g_malloc0 (gtk_rb_node_get_size (tree));
 
   result->red = TRUE;
   result->dirty = TRUE;
@@ -134,7 +134,7 @@ gtk_rb_node_free (GtkRbTree *tree,
   if (tree->clear_augment_func)
     tree->clear_augment_func (NODE_TO_AUG_POINTER (tree, node));
 
-  g_slice_free1 (gtk_rb_node_get_size (tree), node);
+  g_free (node);
 }
 
 static void
@@ -511,7 +511,7 @@ gtk_rb_tree_new_for_size (gsize                element_size,
 {
   GtkRbTree *tree;
 
-  tree = g_slice_new0 (GtkRbTree);
+  tree = g_new0 (GtkRbTree, 1);
   tree->ref_count = 1;
 
   tree->element_size = element_size;
@@ -540,8 +540,8 @@ gtk_rb_tree_unref (GtkRbTree *tree)
 
   if (tree->root)
     gtk_rb_node_free_deep (tree, tree->root);
-    
-  g_slice_free (GtkRbTree, tree);
+
+  g_free (tree);
 }
 
 gpointer
diff --git a/gtk/gtkscale.c b/gtk/gtkscale.c
index d1201f8815..9fbd2e17cd 100644
--- a/gtk/gtkscale.c
+++ b/gtk/gtkscale.c
@@ -1834,7 +1834,7 @@ mark_data_free (MarkData *data)
 {
   g_string_free (data->markup, TRUE);
   g_free (data->context);
-  g_slice_free (MarkData, data);
+  g_free (data);
 }
 
 static void
@@ -1908,7 +1908,7 @@ marks_start_element (GtkBuildableParseContext *context,
           position = g_value_get_enum (&gvalue);
         }
 
-      mark = g_slice_new (MarkData);
+      mark = g_new (MarkData, 1);
       mark->value = value;
       if (position == GTK_POS_LEFT || position == GTK_POS_TOP)
         mark->position = GTK_POS_TOP;
@@ -1968,7 +1968,7 @@ gtk_scale_buildable_custom_tag_start (GtkBuildable       *buildable,
 
   if (strcmp (tagname, "marks") == 0)
     {
-      data = g_slice_new0 (MarksSubparserData);
+      data = g_new0 (MarksSubparserData, 1);
       data->scale = GTK_SCALE (buildable);
       data->builder = builder;
       data->marks = NULL;
@@ -2017,12 +2017,12 @@ gtk_scale_buildable_custom_finished (GtkBuildable *buildable,
         }
 
       g_slist_free (marks_data->marks);
-      g_slice_free (MarksSubparserData, marks_data);
+      g_free (marks_data);
     }
   else
     {
       parent_buildable_iface->custom_finished (buildable, builder, child,
-					       tagname, user_data);
+                                               tagname, user_data);
     }
 
 }
diff --git a/gtk/gtksearchenginetracker3.c b/gtk/gtksearchenginetracker3.c
index bc10e4db03..fc3305dc34 100644
--- a/gtk/gtksearchenginetracker3.c
+++ b/gtk/gtksearchenginetracker3.c
@@ -125,7 +125,7 @@ free_hit (gpointer data)
 
   g_clear_object (&hit->file);
   g_clear_object (&hit->info);
-  g_slice_free (GtkSearchHit, hit);
+  g_free (hit);
 }
 
 static GFileInfo *
@@ -194,7 +194,7 @@ handle_cursor_idle_cb (gpointer user_data)
         break;
 
       url = tracker_sparql_cursor_get_string (cursor, 0, NULL);
-      hit = g_slice_new0 (GtkSearchHit);
+      hit = g_new0 (GtkSearchHit, 1);
       hit->file = g_file_new_for_uri (url);
       hit->info = create_file_info (hit->file, cursor);
       hits = g_list_prepend (hits, hit);
diff --git a/gtk/gtksettings.c b/gtk/gtksettings.c
index 2bd42f2972..378089a276 100644
--- a/gtk/gtksettings.c
+++ b/gtk/gtksettings.c
@@ -1321,7 +1321,7 @@ free_value (gpointer data)
 
   g_value_unset (&qvalue->value);
   g_free (qvalue->origin);
-  g_slice_free (GtkSettingsValue, qvalue);
+  g_free (qvalue);
 }
 
 static void
@@ -1352,7 +1352,7 @@ gtk_settings_set_property_value_internal (GtkSettings            *settings,
   qvalue = g_datalist_id_dup_data (&settings->queued_settings, name_quark, NULL, NULL);
   if (!qvalue)
     {
-      qvalue = g_slice_new0 (GtkSettingsValue);
+      qvalue = g_new0 (GtkSettingsValue, 1);
       g_datalist_id_set_data_full (&settings->queued_settings, name_quark, qvalue, free_value);
     }
   else
diff --git a/gtk/gtksizegroup.c b/gtk/gtksizegroup.c
index 6dba79ae18..916e5155d5 100644
--- a/gtk/gtksizegroup.c
+++ b/gtk/gtksizegroup.c
@@ -531,7 +531,7 @@ gtk_size_group_buildable_custom_tag_start (GtkBuildable       *buildable,
 
   if (strcmp (tagname, "widgets") == 0)
     {
-      data = g_slice_new0 (GSListSubParserData);
+      data = g_new0 (GSListSubParserData, 1);
       data->items = NULL;
       data->object = G_OBJECT (buildable);
       data->builder = builder;
@@ -571,5 +571,5 @@ gtk_size_group_buildable_custom_finished (GtkBuildable  *buildable,
       gtk_size_group_add_widget (GTK_SIZE_GROUP (data->object), GTK_WIDGET (object));
     }
   g_slist_free_full (data->items, item_data_free);
-  g_slice_free (GSListSubParserData, data);
+  g_free (data);
 }
diff --git a/gtk/gtksizerequestcache.c b/gtk/gtksizerequestcache.c
index 49e5e9d5d0..434db3b0d4 100644
--- a/gtk/gtksizerequestcache.c
+++ b/gtk/gtksizerequestcache.c
@@ -37,9 +37,9 @@ free_sizes_x (SizeRequestX **sizes)
   int i;
 
   for (i = 0; i < GTK_SIZE_REQUEST_CACHED_SIZES && sizes[i] != NULL; i++)
-    g_slice_free (SizeRequestX, sizes[i]);
+    g_free (sizes[i]);
 
-  g_slice_free1 (sizeof (SizeRequestY *) * GTK_SIZE_REQUEST_CACHED_SIZES, sizes);
+  g_free (sizes);
 }
 
 static void
@@ -48,9 +48,9 @@ free_sizes_y (SizeRequestY **sizes)
   int i;
 
   for (i = 0; i < GTK_SIZE_REQUEST_CACHED_SIZES && sizes[i] != NULL; i++)
-    g_slice_free (SizeRequestY, sizes[i]);
+    g_free (sizes[i]);
 
-  g_slice_free1 (sizeof (SizeRequestY *) * GTK_SIZE_REQUEST_CACHED_SIZES, sizes);
+  g_free (sizes);
 }
 
 void
@@ -144,10 +144,10 @@ _gtk_size_request_cache_commit (SizeRequestCache *cache,
 	}
 
       if (cache->requests_x == NULL)
-	cache->requests_x = g_slice_alloc0 (sizeof (SizeRequestX *) * GTK_SIZE_REQUEST_CACHED_SIZES);
+	cache->requests_x = g_new0 (SizeRequestX *, GTK_SIZE_REQUEST_CACHED_SIZES);
 
       if (cache->requests_x[cache->flags[orientation].last_cached_request] == NULL)
-	cache->requests_x[cache->flags[orientation].last_cached_request] = g_slice_new (SizeRequestX);
+	cache->requests_x[cache->flags[orientation].last_cached_request] = g_new (SizeRequestX, 1);
 
       cached_size = cache->requests_x[cache->flags[orientation].last_cached_request];
       cached_size->lower_for_size = for_size;
@@ -188,10 +188,10 @@ _gtk_size_request_cache_commit (SizeRequestCache *cache,
 	}
 
       if (cache->requests_y == NULL)
-	cache->requests_y = g_slice_alloc0 (sizeof (SizeRequestY *) * GTK_SIZE_REQUEST_CACHED_SIZES);
+	cache->requests_y = g_new0 (SizeRequestY *, GTK_SIZE_REQUEST_CACHED_SIZES);
 
       if (cache->requests_y[cache->flags[orientation].last_cached_request] == NULL)
-	cache->requests_y[cache->flags[orientation].last_cached_request] = g_slice_new (SizeRequestY);
+	cache->requests_y[cache->flags[orientation].last_cached_request] = g_new (SizeRequestY, 1);
 
       cached_size = cache->requests_y[cache->flags[orientation].last_cached_request];
       cached_size->lower_for_size = for_size;
diff --git a/gtk/gtksorter.c b/gtk/gtksorter.c
index 2de29554ec..152eccd4ac 100644
--- a/gtk/gtksorter.c
+++ b/gtk/gtksorter.c
@@ -236,7 +236,7 @@ gtk_default_sort_keys_free (GtkSortKeys *keys)
 
   g_object_unref (self->sorter);
 
-  g_slice_free (GtkDefaultSortKeys, self);
+  g_free (self);
 }
 
 static gboolean
diff --git a/gtk/gtksortkeys.c b/gtk/gtksortkeys.c
index 9aa7a3f689..1e65b23e7f 100644
--- a/gtk/gtksortkeys.c
+++ b/gtk/gtksortkeys.c
@@ -32,7 +32,7 @@ gtk_sort_keys_alloc (const GtkSortKeysClass *klass,
 
   g_return_val_if_fail (key_align > 0, NULL);
 
-  self = g_slice_alloc0 (size);
+  self = g_malloc0 (size);
 
   self->klass = klass;
   self->ref_count = 1;
@@ -98,7 +98,7 @@ gtk_sort_keys_needs_clear_key (GtkSortKeys *self)
 static void
 gtk_equal_sort_keys_free (GtkSortKeys *keys)
 {
-  g_slice_free (GtkSortKeys, keys);
+  g_free (keys);
 }
 
 static int
diff --git a/gtk/gtkstringlist.c b/gtk/gtkstringlist.c
index ffd3d5c61e..d7e7be3f81 100644
--- a/gtk/gtkstringlist.c
+++ b/gtk/gtkstringlist.c
@@ -361,7 +361,7 @@ gtk_string_list_buildable_custom_tag_start (GtkBuildable       *buildable,
     {
       ItemParserData *data;
 
-      data = g_slice_new0 (ItemParserData);
+      data = g_new0 (ItemParserData, 1);
       data->builder = g_object_ref (builder);
       data->list = g_object_ref (GTK_STRING_LIST (buildable));
       data->domain = gtk_builder_get_translation_domain (builder);
@@ -391,7 +391,7 @@ gtk_string_list_buildable_custom_finished (GtkBuildable *buildable,
       g_object_unref (data->list);
       g_object_unref (data->builder);
       g_string_free (data->string, TRUE);
-      g_slice_free (ItemParserData, data);
+      g_free (data);
     }
 }
 
diff --git a/gtk/gtkstringsorter.c b/gtk/gtkstringsorter.c
index ed2a0ac34c..15866b9304 100644
--- a/gtk/gtkstringsorter.c
+++ b/gtk/gtkstringsorter.c
@@ -163,7 +163,7 @@ gtk_string_sort_keys_free (GtkSortKeys *keys)
   GtkStringSortKeys *self = (GtkStringSortKeys *) keys;
 
   gtk_expression_unref (self->expression);
-  g_slice_free (GtkStringSortKeys, self);
+  g_free (self);
 }
 
 static int
diff --git a/gtk/gtktext.c b/gtk/gtktext.c
index 53335ced05..5c1e705604 100644
--- a/gtk/gtktext.c
+++ b/gtk/gtktext.c
@@ -3576,7 +3576,7 @@ gtk_text_password_hint_free (GtkTextPasswordHint *password_hint)
   if (password_hint->source_id)
     g_source_remove (password_hint->source_id);
 
-  g_slice_free (GtkTextPasswordHint, password_hint);
+  g_free (password_hint);
 }
 
 
@@ -3645,7 +3645,7 @@ buffer_inserted_text (GtkEntryBuffer *buffer,
                                                                     quark_password_hint);
           if (!password_hint)
             {
-              password_hint = g_slice_new0 (GtkTextPasswordHint);
+              password_hint = g_new0 (GtkTextPasswordHint, 1);
               g_object_set_qdata_full (G_OBJECT (self), quark_password_hint, password_hint,
                                        (GDestroyNotify)gtk_text_password_hint_free);
             }
diff --git a/gtk/gtktextattributes.c b/gtk/gtktextattributes.c
index d8cef2518e..015bdd11c5 100644
--- a/gtk/gtktextattributes.c
+++ b/gtk/gtktextattributes.c
@@ -66,7 +66,7 @@ gtk_text_attributes_new (void)
 {
   GtkTextAttributes *values;
 
-  values = g_slice_new0 (GtkTextAttributes);
+  values = g_new0 (GtkTextAttributes, 1);
 
   /* 0 is a valid value for most of the struct */
   values->refcount = 1;
@@ -244,7 +244,7 @@ gtk_text_attributes_unref (GtkTextAttributes *values)
       if (values->font_features)
         g_free (values->font_features);
 
-      g_slice_free (GtkTextAttributes, values);
+      g_free (values);
     }
 }
 
diff --git a/gtk/gtktextbtree.c b/gtk/gtktextbtree.c
index 15910f47e5..78f07bcffc 100644
--- a/gtk/gtktextbtree.c
+++ b/gtk/gtktextbtree.c
@@ -395,7 +395,7 @@ _gtk_text_btree_new (GtkTextTagTable *table,
 
   /* Create the tree itself */
 
-  tree = g_slice_new0 (GtkTextBTree);
+  tree = g_new0 (GtkTextBTree, 1);
   tree->root_node = root_node;
   tree->table = table;
   tree->views = NULL;
@@ -513,7 +513,7 @@ _gtk_text_btree_unref (GtkTextBTree *tree)
       g_object_unref (tree->selection_bound_mark);
       tree->selection_bound_mark = NULL;
 
-      g_slice_free (GtkTextBTree, tree);
+      g_free (tree);
     }
 }
 
@@ -1539,7 +1539,7 @@ _gtk_text_btree_add_view (GtkTextBTree *tree,
 
   g_return_if_fail (tree != NULL);
 
-  view = g_slice_new (BTreeView);
+  view = g_new (BTreeView, 1);
 
   view->view_id = layout;
   view->layout = layout;
@@ -1561,7 +1561,7 @@ _gtk_text_btree_add_view (GtkTextBTree *tree,
    */
   last_line = get_last_line (tree);
 
-  line_data = g_slice_new (GtkTextLineData);
+  line_data = g_new (GtkTextLineData, 1);
   line_data->view_id = layout;
   line_data->next = NULL;
   line_data->width = 0;
@@ -1607,14 +1607,14 @@ _gtk_text_btree_remove_view (GtkTextBTree *tree,
    */
   last_line = get_last_line (tree);
   line_data = _gtk_text_line_remove_data (last_line, view_id);
-  g_slice_free (GtkTextLineData, line_data);
+  g_free (line_data);
 
   gtk_text_btree_node_remove_view (view, tree->root_node, view_id);
 
   view->layout = (gpointer) 0xdeadbeef;
   view->view_id = (gpointer) 0xdeadbeef;
 
-  g_slice_free (BTreeView, view);
+  g_free (view);
 }
 
 void
@@ -1665,7 +1665,7 @@ static IterStack*
 iter_stack_new (void)
 {
   IterStack *stack;
-  stack = g_slice_new (IterStack);
+  stack = g_new (IterStack, 1);
   stack->iters = NULL;
   stack->count = 0;
   stack->allocated = 0;
@@ -1704,7 +1704,7 @@ static void
 iter_stack_free (IterStack *stack)
 {
   g_free (stack->iters);
-  g_slice_free (IterStack, stack);
+  g_free (stack);
 }
 
 static void
@@ -3610,7 +3610,7 @@ _gtk_text_line_data_new (GtkTextLayout *layout,
 {
   GtkTextLineData *line_data;
 
-  line_data = g_slice_new (GtkTextLineData);
+  line_data = g_new (GtkTextLineData, 1);
 
   line_data->view_id = layout;
   line_data->next = NULL;
@@ -4700,7 +4700,12 @@ _gtk_text_line_previous_could_contain_tag (GtkTextLine  *line,
 static void
 summary_list_destroy (Summary *summary)
 {
-  g_slice_free_chain (Summary, summary, next);
+  while (summary)
+    {
+      Summary *next = summary->next;
+      g_free (summary);
+      summary = next;
+    }
 }
 
 static GtkTextLine*
@@ -4734,7 +4739,7 @@ gtk_text_line_new (void)
 {
   GtkTextLine *line;
 
-  line = g_slice_new0 (GtkTextLine);
+  line = g_new0 (GtkTextLine, 1);
   line->dir_strong = PANGO_DIRECTION_NEUTRAL;
   line->dir_propagated_forward = PANGO_DIRECTION_NEUTRAL;
   line->dir_propagated_back = PANGO_DIRECTION_NEUTRAL;
@@ -4765,7 +4770,7 @@ gtk_text_line_destroy (GtkTextBTree *tree, GtkTextLine *line)
       ld = next;
     }
 
-  g_slice_free (GtkTextLine, line);
+  g_free (line);
 }
 
 static void
@@ -4826,7 +4831,7 @@ node_data_new (gpointer  view_id,
 {
   NodeData *nd;
 
-  nd = g_slice_new (NodeData);
+  nd = g_new (NodeData, 1);
 
   nd->view_id = view_id;
   nd->next = next;
@@ -4840,13 +4845,18 @@ node_data_new (gpointer  view_id,
 static inline void
 node_data_destroy (NodeData *nd)
 {
-  g_slice_free (NodeData, nd);
+  g_free (nd);
 }
 
 static inline void
 node_data_list_destroy (NodeData *nd)
 {
-  g_slice_free_chain (NodeData, nd, next);
+  while (nd)
+    {
+      NodeData *next = nd->next;
+      g_free (nd);
+      nd = next;
+    }
 }
 
 static inline NodeData*
@@ -4869,7 +4879,7 @@ summary_destroy (Summary *summary)
   summary->info = (void*)0x1;
   summary->toggle_count = 567;
   summary->next = (void*)0x1;
-  g_slice_free (Summary, summary);
+  g_free (summary);
 }
 
 static GtkTextBTreeNode*
@@ -4877,7 +4887,7 @@ gtk_text_btree_node_new (void)
 {
   GtkTextBTreeNode *node;
 
-  node = g_slice_new (GtkTextBTreeNode);
+  node = g_new (GtkTextBTreeNode, 1);
 
   node->node_data = NULL;
 
@@ -4907,7 +4917,7 @@ gtk_text_btree_node_adjust_toggle_count (GtkTextBTreeNode  *node,
     {
       /* didn't find a summary for our tag. */
       g_return_if_fail (adjust > 0);
-      summary = g_slice_new (Summary);
+      summary = g_new (Summary, 1);
       summary->info = info;
       summary->toggle_count = adjust;
       summary->next = node->summary;
@@ -5529,7 +5539,7 @@ gtk_text_btree_node_free_empty (GtkTextBTree *tree,
 
   summary_list_destroy (node->summary);
   node_data_list_destroy (node->node_data);
-  g_slice_free (GtkTextBTreeNode, node);
+  g_free (node);
 }
 
 static NodeData*
@@ -6014,7 +6024,7 @@ gtk_text_btree_get_tag_info (GtkTextBTree *tree,
     {
       /* didn't find it, create. */
 
-      info = g_slice_new (GtkTextTagInfo);
+      info = g_new (GtkTextTagInfo, 1);
 
       info->tag = tag;
       g_object_ref (tag);
@@ -6055,7 +6065,7 @@ gtk_text_btree_remove_tag_info (GtkTextBTree *tree,
 
           g_object_unref (info->tag);
 
-          g_slice_free (GtkTextTagInfo, info);
+          g_free (info);
           return;
         }
 
@@ -6355,7 +6365,7 @@ _gtk_change_node_toggle_count (GtkTextBTreeNode *node,
                */
 
               GtkTextBTreeNode *rootnode = info->tag_root;
-              summary = g_slice_new (Summary);
+              summary = g_new (Summary, 1);
               summary->info = info;
               summary->toggle_count = info->toggle_count - delta;
               summary->next = rootnode->summary;
@@ -6364,7 +6374,7 @@ _gtk_change_node_toggle_count (GtkTextBTreeNode *node,
               rootLevel = rootnode->level;
               info->tag_root = rootnode;
             }
-          summary = g_slice_new (Summary);
+          summary = g_new (Summary, 1);
           summary->info = info;
           summary->toggle_count = delta;
           summary->next = node->summary;
diff --git a/gtk/gtktextbuffer.c b/gtk/gtktextbuffer.c
index a8a7b774dc..09bb01c7d5 100644
--- a/gtk/gtktextbuffer.c
+++ b/gtk/gtktextbuffer.c
@@ -1404,7 +1404,7 @@ save_range (GtkTextIter *range_start,
 {
   Range *r;
 
-  r = g_slice_new (Range);
+  r = g_new (Range, 1);
 
   r->buffer = gtk_text_iter_get_buffer (range_start);
   g_object_ref (r->buffer);
@@ -1464,7 +1464,7 @@ restore_range (Range *r)
     *r->range_end = *r->whole_end;
 
   g_object_unref (r->buffer);
-  g_slice_free (Range, r);
+  g_free (r);
 }
 
 static void
@@ -3662,7 +3662,7 @@ static void
 free_clipboard_request (ClipboardRequest *request_data)
 {
   g_object_unref (request_data->buffer);
-  g_slice_free (ClipboardRequest, request_data);
+  g_free (request_data);
 }
 
 #if 0
@@ -3854,7 +3854,7 @@ gtk_text_buffer_add_selection_clipboard (GtkTextBuffer *buffer,
     }
   else
     {
-      selection_clipboard = g_slice_new (SelectionClipboard);
+      selection_clipboard = g_new (SelectionClipboard, 1);
 
       selection_clipboard->clipboard = clipboard;
       selection_clipboard->ref_count = 1;
@@ -3897,7 +3897,7 @@ gtk_text_buffer_remove_selection_clipboard (GtkTextBuffer *buffer,
       buffer->priv->selection_clipboards = g_slist_remove (buffer->priv->selection_clipboards,
                                                            selection_clipboard);
 
-      g_slice_free (SelectionClipboard, selection_clipboard);
+      g_free (selection_clipboard);
     }
 }
 
@@ -3910,7 +3910,7 @@ remove_all_selection_clipboards (GtkTextBuffer *buffer)
   for (l = priv->selection_clipboards; l != NULL; l = l->next)
     {
       SelectionClipboard *selection_clipboard = l->data;
-      g_slice_free (SelectionClipboard, selection_clipboard);
+      g_free (selection_clipboard);
     }
 
   g_slist_free (priv->selection_clipboards);
@@ -3940,7 +3940,7 @@ gtk_text_buffer_paste_clipboard (GtkTextBuffer *buffer,
 				 GtkTextIter   *override_location,
                                  gboolean       default_editable)
 {
-  ClipboardRequest *data = g_slice_new (ClipboardRequest);
+  ClipboardRequest *data = g_new (ClipboardRequest, 1);
   GtkTextIter paste_point;
   GtkTextIter start, end;
 
@@ -4321,7 +4321,7 @@ free_log_attr_cache (GtkTextLogAttrCache *cache)
   for (i = 0; i < ATTR_CACHE_SIZE; i++)
     g_free (cache->entries[i].attrs);
 
-  g_slice_free (GtkTextLogAttrCache, cache);
+  g_free (cache);
 }
 
 static void
@@ -4398,7 +4398,7 @@ _gtk_text_buffer_get_line_log_attrs (GtkTextBuffer     *buffer,
 
   if (priv->log_attr_cache == NULL)
     {
-      priv->log_attr_cache = g_slice_new0 (GtkTextLogAttrCache);
+      priv->log_attr_cache = g_new0 (GtkTextLogAttrCache, 1);
       priv->log_attr_cache->chars_changed_stamp =
         _gtk_text_btree_get_chars_changed_stamp (get_btree (buffer));
     }
diff --git a/gtk/gtktextchild.c b/gtk/gtktextchild.c
index b3ca5908f6..a7d2fa1860 100644
--- a/gtk/gtktextchild.c
+++ b/gtk/gtktextchild.c
@@ -142,7 +142,7 @@ paintable_segment_delete_func (GtkTextLineSegment *seg,
       g_object_unref (paintable);
     }
 
-  g_slice_free1 (PAINTABLE_SEG_SIZE, seg);
+  g_free (seg);
 
   return 0;
 }
@@ -184,7 +184,7 @@ _gtk_paintable_segment_new (GdkPaintable *paintable)
   GtkTextLineSegment *seg;
   guint flags;
 
-  seg = g_slice_alloc (PAINTABLE_SEG_SIZE);
+  seg = g_malloc (PAINTABLE_SEG_SIZE);
 
   seg->type = &gtk_text_paintable_type;
 
@@ -299,7 +299,7 @@ _gtk_widget_segment_new (GtkTextChildAnchor *anchor)
   GtkTextLineSegment *seg;
   GtkTextChildAnchorPrivate *priv = gtk_text_child_anchor_get_instance_private (anchor);
 
-  seg = g_slice_alloc (WIDGET_SEG_SIZE);
+  seg = g_malloc (WIDGET_SEG_SIZE);
 
   seg->type = &gtk_text_child_type;
 
@@ -461,7 +461,7 @@ gtk_text_child_anchor_finalize (GObject *obj)
 
       g_slist_free_full (seg->body.child.widgets, g_object_unref);
 
-      g_slice_free1 (WIDGET_SEG_SIZE, seg);
+      g_free (seg);
     }
 
   g_free (priv->replacement);
diff --git a/gtk/gtktexthistory.c b/gtk/gtktexthistory.c
index 614724112a..8cd6f85e91 100644
--- a/gtk/gtktexthistory.c
+++ b/gtk/gtktexthistory.c
@@ -285,7 +285,7 @@ action_new (ActionKind kind)
 {
   Action *action;
 
-  action = g_slice_new0 (Action);
+  action = g_new0 (Action, 1);
   action->kind = kind;
   action->link.data = action;
 
@@ -305,7 +305,7 @@ action_free (Action *action)
   else if (action->kind == ACTION_KIND_GROUP)
     clear_action_queue (&action->u.group.actions);
 
-  g_slice_free (Action, action);
+  g_free (action);
 }
 
 static gboolean
diff --git a/gtk/gtktextiter.c b/gtk/gtktextiter.c
index 9ffbf581a3..d3b18752c4 100644
--- a/gtk/gtktextiter.c
+++ b/gtk/gtktextiter.c
@@ -425,7 +425,7 @@ gtk_text_iter_copy (const GtkTextIter *iter)
 
   g_return_val_if_fail (iter != NULL, NULL);
 
-  new_iter = g_slice_new (GtkTextIter);
+  new_iter = g_new (GtkTextIter, 1);
 
   *new_iter = *iter;
 
@@ -447,7 +447,7 @@ gtk_text_iter_free (GtkTextIter *iter)
 {
   g_return_if_fail (iter != NULL);
 
-  g_slice_free (GtkTextIter, iter);
+  g_free (iter);
 }
 
 /**
diff --git a/gtk/gtktextlayout.c b/gtk/gtktextlayout.c
index 0162c266f1..7e6915cc22 100644
--- a/gtk/gtktextlayout.c
+++ b/gtk/gtktextlayout.c
@@ -854,7 +854,7 @@ gtk_text_layout_free_line_data (GtkTextLayout   *layout,
 {
   gtk_text_layout_invalidate_cache (layout, line, FALSE);
 
-  g_slice_free (GtkTextLineData, line_data);
+  g_free (line_data);
 }
 
 /**
@@ -1348,7 +1348,7 @@ gtk_text_attr_appearance_destroy (PangoAttribute *attr)
   if (appearance_attr->appearance.strikethrough_rgba)
     gdk_rgba_free (appearance_attr->appearance.strikethrough_rgba);
 
-  g_slice_free (GtkTextAttrAppearance, appearance_attr);
+  g_free (appearance_attr);
 }
 
 static gboolean
@@ -1431,7 +1431,7 @@ gtk_text_attr_appearance_new (const GtkTextAppearance *appearance)
     klass.type = gtk_text_attr_appearance_type =
       pango_attr_type_register (I_("GtkTextAttrAppearance"));
 
-  result = g_slice_new (GtkTextAttrAppearance);
+  result = g_new (GtkTextAttrAppearance, 1);
   result->attr.klass = &klass;
 
   result->appearance = *appearance;
diff --git a/gtk/gtktextlinedisplaycache.c b/gtk/gtktextlinedisplaycache.c
index 614b4d1e42..c99ef06d01 100644
--- a/gtk/gtktextlinedisplaycache.c
+++ b/gtk/gtktextlinedisplaycache.c
@@ -77,7 +77,7 @@ gtk_text_line_display_cache_new (void)
 {
   GtkTextLineDisplayCache *ret;
 
-  ret = g_slice_new0 (GtkTextLineDisplayCache);
+  ret = g_new0 (GtkTextLineDisplayCache, 1);
   ret->sorted_by_line = g_sequence_new ((GDestroyNotify)gtk_text_line_display_unref);
   ret->line_to_display = g_hash_table_new (NULL, NULL);
   ret->mru_size = DEFAULT_MRU_SIZE;
@@ -101,7 +101,7 @@ gtk_text_line_display_cache_free (GtkTextLineDisplayCache *cache)
   g_clear_pointer (&cache->evict_source, g_source_destroy);
   g_clear_pointer (&cache->sorted_by_line, g_sequence_free);
   g_clear_pointer (&cache->line_to_display, g_hash_table_unref);
-  g_slice_free (GtkTextLineDisplayCache, cache);
+  g_free (cache);
 }
 
 static gboolean
diff --git a/gtk/gtktextmark.c b/gtk/gtktextmark.c
index f1c5edb4be..665079e62f 100644
--- a/gtk/gtktextmark.c
+++ b/gtk/gtktextmark.c
@@ -176,7 +176,7 @@ gtk_text_mark_finalize (GObject *obj)
                    "impending");
 
       g_free (seg->body.mark.name);
-      g_slice_free1 (MSEG_SIZE, seg);
+      g_free (seg);
 
       mark->segment = NULL;
     }
@@ -383,7 +383,7 @@ gtk_mark_segment_new (GtkTextMark *mark_obj)
 {
   GtkTextLineSegment *mark;
 
-  mark = g_slice_alloc0 (MSEG_SIZE);
+  mark = g_malloc0 (MSEG_SIZE);
   mark->body.mark.name = NULL;
   mark->type = &gtk_text_right_mark_type;
 
diff --git a/gtk/gtktextsegment.c b/gtk/gtktextsegment.c
index e243b5a267..233016346f 100644
--- a/gtk/gtktextsegment.c
+++ b/gtk/gtktextsegment.c
@@ -193,7 +193,7 @@ _gtk_char_segment_new (const char *text, guint len)
 
   g_assert (gtk_text_byte_begins_utf8_char (text));
 
-  seg = g_slice_alloc (CSEG_SIZE (len));
+  seg = g_malloc (CSEG_SIZE (len));
   seg->type = (GtkTextLineSegmentClass *)&gtk_text_char_type;
   seg->next = NULL;
   seg->byte_count = len;
@@ -221,7 +221,7 @@ _gtk_char_segment_new_from_two_strings (const char *text1,
   g_assert (gtk_text_byte_begins_utf8_char (text1));
   g_assert (gtk_text_byte_begins_utf8_char (text2));
 
-  seg = g_slice_alloc (CSEG_SIZE (len1+len2));
+  seg = g_malloc (CSEG_SIZE (len1+len2));
   seg->type = &gtk_text_char_type;
   seg->next = NULL;
   seg->byte_count = len1 + len2;
@@ -245,7 +245,7 @@ _gtk_char_segment_free (GtkTextLineSegment *seg)
 
   g_assert (seg->type == &gtk_text_char_type);
 
-  g_slice_free1 (CSEG_SIZE (seg->byte_count), seg);
+  g_free (seg);
 }
 
 /*
@@ -433,7 +433,7 @@ _gtk_toggle_segment_new (GtkTextTagInfo *info, gboolean on)
 #pragma GCC diagnostic ignored "-Warray-bounds"
   GtkTextLineSegment *seg;
 
-  seg = g_slice_alloc (TSEG_SIZE);
+  seg = g_malloc (TSEG_SIZE);
 
   seg->type = on ? &gtk_text_toggle_on_type : &gtk_text_toggle_off_type;
 
@@ -458,7 +458,7 @@ _gtk_toggle_segment_free (GtkTextLineSegment *seg)
   g_assert (seg->type == &gtk_text_toggle_on_type ||
             seg->type == &gtk_text_toggle_off_type);
 
-  g_slice_free1 (TSEG_SIZE, seg);
+  g_free (seg);
 }
 
 /*
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index 271f642294..ccc83bc527 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -2738,7 +2738,7 @@ free_pending_scroll (GtkTextPendingScroll *scroll)
     gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
                                  scroll->mark);
   g_object_unref (scroll->mark);
-  g_slice_free (GtkTextPendingScroll, scroll);
+  g_free (scroll);
 }
 
 static void
@@ -2764,7 +2764,7 @@ gtk_text_view_queue_scroll (GtkTextView   *text_view,
 
   DV(g_print(G_STRLOC"\n"));
 
-  scroll = g_slice_new (GtkTextPendingScroll);
+  scroll = g_new (GtkTextPendingScroll, 1);
 
   scroll->within_margin = within_margin;
   scroll->use_align = use_align;
@@ -7410,7 +7410,7 @@ selection_data_free (SelectionData *data)
 
   g_object_unref (data->buffer);
 
-  g_slice_free (SelectionData, data);
+  g_free (data);
 }
 
 static gboolean
@@ -7642,7 +7642,7 @@ gtk_text_view_start_selection_drag (GtkTextView          *text_view,
   SelectionData *data;
 
   priv = text_view->priv;
-  data = g_slice_new0 (SelectionData);
+  data = g_new0 (SelectionData, 1);
   data->granularity = granularity;
 
   buffer = get_buffer (text_view);
@@ -9403,7 +9403,7 @@ text_window_new (GtkWidget *widget)
   GtkTextWindow *win;
   GtkCssNode *widget_node;
 
-  win = g_slice_new (GtkTextWindow);
+  win = g_new (GtkTextWindow, 1);
 
   win->type = GTK_TEXT_WINDOW_TEXT;
   win->widget = widget;
@@ -9429,7 +9429,7 @@ text_window_free (GtkTextWindow *win)
 {
   gtk_css_node_set_parent (win->css_node, NULL);
 
-  g_slice_free (GtkTextWindow, win);
+  g_free (win);
 }
 
 static void
@@ -9588,7 +9588,7 @@ anchored_child_new (GtkWidget          *child,
 {
   AnchoredChild *vc;
 
-  vc = g_slice_new0 (AnchoredChild);
+  vc = g_new0 (AnchoredChild, 1);
   vc->link.data = vc;
   vc->widget = g_object_ref (child);
   vc->anchor = g_object_ref (anchor);
@@ -9615,7 +9615,7 @@ anchored_child_free (AnchoredChild *child)
   g_object_unref (child->anchor);
   g_object_unref (child->widget);
 
-  g_slice_free (AnchoredChild, child);
+  g_free (child);
 }
 
 static void
diff --git a/gtk/gtktextviewchild.c b/gtk/gtktextviewchild.c
index e3ae004801..4532b99910 100644
--- a/gtk/gtktextviewchild.c
+++ b/gtk/gtktextviewchild.c
@@ -60,7 +60,7 @@ overlay_new (GtkWidget *widget,
 {
   Overlay *overlay;
 
-  overlay = g_slice_new0 (Overlay);
+  overlay = g_new0 (Overlay, 1);
   overlay->link.data = overlay;
   overlay->widget = g_object_ref (widget);
   overlay->x = x;
@@ -76,7 +76,7 @@ overlay_free (Overlay *overlay)
   g_assert (overlay->link.next == NULL);
 
   g_object_unref (overlay->widget);
-  g_slice_free (Overlay, overlay);
+  g_free (overlay);
 }
 
 static void
diff --git a/gtk/gtktreelistrowsorter.c b/gtk/gtktreelistrowsorter.c
index d7932cb067..2afdf72d25 100644
--- a/gtk/gtktreelistrowsorter.c
+++ b/gtk/gtktreelistrowsorter.c
@@ -112,7 +112,7 @@ gtk_tree_list_row_sort_keys_free (GtkSortKeys *keys)
   g_hash_table_unref (self->cached_keys);
   if (self->sort_keys)
     gtk_sort_keys_unref (self->sort_keys);
-  g_slice_free (GtkTreeListRowSortKeys, self);
+  g_free (self);
 }
 
 static inline gboolean
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 974e126172..eaf7f04d11 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -1928,7 +1928,7 @@ template_child_class_free (AutomaticChildClass *child_class)
   if (child_class)
     {
       g_free (child_class->name);
-      g_slice_free (AutomaticChildClass, child_class);
+      g_free (child_class);
     }
 }
 
@@ -1944,7 +1944,7 @@ gtk_widget_base_class_finalize (GtkWidgetClass *klass)
 
       g_object_unref (template_data->scope);
 
-      g_slice_free (GtkWidgetTemplate, template_data);
+      g_free (template_data);
     }
 
   g_object_unref (klass->priv->shortcuts);
@@ -2913,7 +2913,7 @@ unref_tick_callback_info (GtkWidget           *widget,
       priv->tick_callbacks = g_list_delete_link (priv->tick_callbacks, link);
       if (info->notify)
         info->notify (info->user_data);
-      g_slice_free (GtkTickCallbackInfo, info);
+      g_free (info);
     }
 
   if (priv->tick_callbacks == NULL && priv->clock_tick_id)
@@ -3045,7 +3045,7 @@ gtk_widget_add_tick_callback (GtkWidget       *widget,
         }
     }
 
-  info = g_slice_new0 (GtkTickCallbackInfo);
+  info = g_new0 (GtkTickCallbackInfo, 1);
 
   info->refcount = 1;
   info->id = ++tick_callback_id;
@@ -3111,7 +3111,7 @@ surface_transform_changed_callback_info_destroy (GtkSurfaceTransformChangedCallb
   if (info->notify)
     info->notify (info->user_data);
 
-  g_slice_free (GtkSurfaceTransformChangedCallbackInfo, info);
+  g_free (info);
 }
 
 static void
@@ -3158,7 +3158,7 @@ destroy_surface_transform_data (GtkWidget *widget)
 
   g_list_free_full (surface_transform_data->callbacks,
                     (GDestroyNotify) surface_transform_changed_callback_info_destroy);
-  g_slice_free (GtkWidgetSurfaceTransformData, surface_transform_data);
+  g_free (surface_transform_data);
   priv->surface_transform_data = NULL;
 }
 
@@ -3264,7 +3264,7 @@ ensure_surface_transform_data (GtkWidget *widget)
   GtkWidgetPrivate *priv = gtk_widget_get_instance_private (widget);
 
   if (!priv->surface_transform_data)
-    priv->surface_transform_data = g_slice_new0 (GtkWidgetSurfaceTransformData);
+    priv->surface_transform_data = g_new0 (GtkWidgetSurfaceTransformData, 1);
 
   return priv->surface_transform_data;
 }
@@ -3306,7 +3306,7 @@ gtk_widget_add_surface_transform_changed_callback (GtkWidget
   if (!surface_transform_data->callbacks)
     sync_widget_surface_transform (widget);
 
-  info = g_slice_new0 (GtkSurfaceTransformChangedCallbackInfo);
+  info = g_new0 (GtkSurfaceTransformChangedCallbackInfo, 1);
 
   info->id = ++surface_transform_changed_callback_id;
   info->callback = callback;
@@ -3361,7 +3361,7 @@ gtk_widget_remove_surface_transform_changed_callback (GtkWidget *widget,
     {
       if (surface_transform_data->tracked_parent)
         remove_parent_surface_transform_changed_listener (widget);
-      g_slice_free (GtkWidgetSurfaceTransformData, surface_transform_data);
+      g_free (surface_transform_data);
       priv->surface_transform_data = NULL;
     }
 }
@@ -7509,7 +7509,7 @@ gtk_widget_real_destroy (GtkWidget *object)
                                                                          child_class->name);
                   if (G_IS_OBJECT (child_object))
                     {
-                      FinalizeAssertion *assertion = g_slice_new0 (FinalizeAssertion);
+                      FinalizeAssertion *assertion = g_new0 (FinalizeAssertion, 1);
                       assertion->child_class = child_class;
                       assertion->widget_type = class_type;
                       assertion->object = child_object;
@@ -7582,7 +7582,7 @@ gtk_widget_real_destroy (GtkWidget *object)
             g_type_name (assertion->widget_type),
             assertion->object->ref_count);
 
-          g_slice_free (FinalizeAssertion, assertion);
+          g_free (assertion);
         }
       g_slist_free (assertions);
 #endif /* G_ENABLE_CONSISTENCY_CHECKS */
@@ -8008,7 +8008,7 @@ gtk_widget_propagate_state (GtkWidget          *widget,
 GtkRequisition *
 gtk_requisition_new (void)
 {
-  return g_slice_new0 (GtkRequisition);
+  return g_new0 (GtkRequisition, 1);
 }
 
 /**
@@ -8022,7 +8022,9 @@ gtk_requisition_new (void)
 GtkRequisition *
 gtk_requisition_copy (const GtkRequisition *requisition)
 {
-  return g_slice_dup (GtkRequisition, requisition);
+  GtkRequisition *copy = g_new (GtkRequisition, 1);
+  memcpy (copy, requisition, sizeof (GtkRequisition));
+  return copy;
 }
 
 /**
@@ -8034,7 +8036,7 @@ gtk_requisition_copy (const GtkRequisition *requisition)
 void
 gtk_requisition_free (GtkRequisition *requisition)
 {
-  g_slice_free (GtkRequisition, requisition);
+  g_free (requisition);
 }
 
 G_DEFINE_BOXED_TYPE (GtkRequisition, gtk_requisition,
@@ -9092,7 +9094,7 @@ gtk_widget_buildable_custom_tag_start (GtkBuildable       *buildable,
     {
       StyleParserData *data;
 
-      data = g_slice_new0 (StyleParserData);
+      data = g_new0 (StyleParserData, 1);
       data->builder = builder;
 
       *parser = style_parser;
@@ -9105,7 +9107,7 @@ gtk_widget_buildable_custom_tag_start (GtkBuildable       *buildable,
     {
       LayoutParserData *data;
 
-      data = g_slice_new0 (LayoutParserData);
+      data = g_new0 (LayoutParserData, 1);
       data->builder = builder;
       data->object = (GObject *) g_object_ref (buildable);
 
@@ -9119,7 +9121,7 @@ gtk_widget_buildable_custom_tag_start (GtkBuildable       *buildable,
     {
       AccessibilityParserData *data;
 
-      data = g_slice_new0 (AccessibilityParserData);
+      data = g_new0 (AccessibilityParserData, 1);
       data->builder = builder;
       data->object = (GObject *) g_object_ref (buildable);
 
@@ -9384,7 +9386,7 @@ gtk_widget_buildable_custom_finished (GtkBuildable *buildable,
         gtk_widget_add_css_class (GTK_WIDGET (buildable), (const char *)l->data);
 
       g_slist_free_full (style_data->classes, g_free);
-      g_slice_free (StyleParserData, style_data);
+      g_free (style_data);
     }
   else if (strcmp (tagname, "layout") == 0)
     {
@@ -9399,7 +9401,7 @@ gtk_widget_buildable_custom_finished (GtkBuildable *buildable,
       /* Free the unapplied properties, if any */
       g_slist_free_full (layout_data->properties, layout_property_info_free);
       g_object_unref (layout_data->object);
-      g_slice_free (LayoutParserData, layout_data);
+      g_free (layout_data);
     }
   else if (strcmp (tagname, "accessibility") == 0)
     {
@@ -9415,7 +9417,7 @@ gtk_widget_buildable_custom_finished (GtkBuildable *buildable,
       g_slist_free_full (accessibility_data->states,
                          accessibility_attribute_info_free);
       g_object_unref (accessibility_data->object);
-      g_slice_free (AccessibilityParserData, accessibility_data);
+      g_free (accessibility_data);
     }
 }
 
@@ -11007,7 +11009,7 @@ template_child_class_new (const char *name,
                           gboolean     internal_child,
                           gssize       offset)
 {
-  AutomaticChildClass *child_class = g_slice_new0 (AutomaticChildClass);
+  AutomaticChildClass *child_class = g_new0 (AutomaticChildClass, 1);
 
   child_class->name = g_strdup (name);
   child_class->internal_child = internal_child;
@@ -11267,7 +11269,7 @@ gtk_widget_class_set_template (GtkWidgetClass *widget_class,
   g_return_if_fail (widget_class->priv->template == NULL);
   g_return_if_fail (template_bytes != NULL);
 
-  widget_class->priv->template = g_slice_new0 (GtkWidgetTemplate);
+  widget_class->priv->template = g_new0 (GtkWidgetTemplate, 1);
   bytes_data = g_bytes_get_data (template_bytes, &bytes_size);
 
   if (_gtk_buildable_parser_is_precompiled (bytes_data, bytes_size))
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index dced97168b..75b9af1e2b 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -3202,7 +3202,7 @@ static void
 free_icon_info (GtkWindowIconInfo *info)
 {
   g_free (info->icon_name);
-  g_slice_free (GtkWindowIconInfo, info);
+  g_free (info);
 }
 
 
@@ -3215,7 +3215,7 @@ ensure_icon_info (GtkWindow *window)
 
   if (info == NULL)
     {
-      info = g_slice_new0 (GtkWindowIconInfo);
+      info = g_new0 (GtkWindowIconInfo, 1);
       g_object_set_qdata_full (G_OBJECT (window),
                               quark_gtk_window_icon_info,
                               info,