gtk2: Fix function pointer type

x11-packages/gtk2/build.sh

@@ -4,7 +4,7 @@ TERMUX_PKG_LICENSE="LGPL-2.0"
 TERMUX_PKG_MAINTAINER="@termux"
 _MAJOR_VERSION=2.24
 TERMUX_PKG_VERSION=${_MAJOR_VERSION}.33
-TERMUX_PKG_REVISION=2
+TERMUX_PKG_REVISION=3
 TERMUX_PKG_SRCURL=https://download.gnome.org/sources/gtk+/${_MAJOR_VERSION}/gtk+-${TERMUX_PKG_VERSION}.tar.xz
 TERMUX_PKG_SHA256=ac2ac757f5942d318a311a54b0c80b5ef295f299c2a73c632f6bfb1ff49cc6da
 TERMUX_PKG_BUILD_IN_SRC=true

x11-packages/gtk2/gtk-gtkscale.c.patch

@@ -0,0 +1,11 @@
+--- a/gtk/gtkscale.c
++++ b/gtk/gtkscale.c
+@@ -1471,7 +1471,7 @@ gtk_scale_add_mark (GtkScale        *sca
+   mark->position = position;
+  
+   priv->marks = g_slist_insert_sorted_with_data (priv->marks, mark,
+-                                                 (GCompareFunc) compare_marks,
++                                                 (GCompareDataFunc) compare_marks,
+                                                  GINT_TO_POINTER (
+                                                    gtk_range_get_inverted (GTK_RANGE (scale)) 
+                                                    ));