Compilation error

[webdev23]

gcc -O3 -c geany_prettify.c -fPIC pkg-config --cflags geany``

geany_prettify.c: In function ‘plugin_init’: geany_prettify.c:318:5: warning: ‘gtk_image_menu_item_new_with_mnemonic’ is deprecated: Use 'gtk_menu_item_new_with_mnemonic' instead [-Wdeprecated-declarations] MenuWidget = gtk_image_menu_item_new_with_mnemonic( _( "_Prettify" ) ); ^~~~~~~~~~ In file included from /usr/include/gtk-3.0/gtk/gtk.h:265:0, from /usr/include/geany/gtkcompat.h:26, from /usr/include/geany/editor.h:28, from /usr/include/geany/document.h:32, from /usr/include/geany/build.h:27, from /usr/include/geany/geanyplugin.h:37, from geany_prettify.c:41: /usr/include/gtk-3.0/gtk/deprecated/gtkimagemenuitem.h:82:12: note: declared here GtkWidget* gtk_image_menu_item_new_with_mnemonic (const gchar *label); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~