diff -up src/volumeicon-0.5.0/configure.ac.orig src/volumeicon-0.5.0/configure.ac
--- src/volumeicon-0.5.0/configure.ac.orig	2013-02-25 09:06:49.000000000 -0700
+++ src/volumeicon-0.5.0/configure.ac	2014-05-17 08:58:51.000000000 -0600
@@ -35,7 +35,7 @@ AC_ARG_ENABLE([notify],
   [notify=no])
 
 # Check for gtk
-PKG_CHECK_MODULES([GTK], [gtk+-3.0 >= 3.0])
+PKG_CHECK_MODULES([GTK], [gtk+-2.0 >= 2.16])
 AC_SUBST(GTK_CFLAGS)
 AC_SUBST(GTK_LIBS)
 
@@ -64,8 +64,8 @@ AC_ARG_WITH([oss-include-path],
       OSS_CPPFLAGS="-I${OSSLIBDIR}/include/sys"
       OSS_HEADER="${OSSLIBDIR}/include/sys/soundcard.h"
     else
-      OSS_CPPFLAGS="-I/usr/lib/oss/include/sys"
-      OSS_HEADER="/usr/lib/oss/include/sys/soundcard.h"
+      OSS_CPPFLAGS=""
+      OSS_HEADER="sys/soundcard.h"
     fi
   ]
 )
@@ -75,7 +75,7 @@ AC_ARG_WITH([oss-include-path],
 # to fail.
 OLD_CPPFLAGS=${CPPFLAGS}
 CPPFLAGS="${OSS_CPPFLAGS}"
-AC_CHECK_HEADER([soundcard.h], [], [AC_MSG_ERROR([could not find soundcard.h])], [])
+AC_CHECK_HEADER([sys/soundcard.h], [], [AC_MSG_ERROR([could not find soundcard.h])], [])
 CPPFLAGS=${OLD_CPPFLAGS}
 
 # Pass the absolute path to the OSS header file
diff -up src/volumeicon-0.5.0/src/bind.c.orig src/volumeicon-0.5.0/src/bind.c
--- src/volumeicon-0.5.0/src/bind.c.orig	2012-10-25 09:59:10.000000000 -0600
+++ src/volumeicon-0.5.0/src/bind.c	2014-05-17 08:57:35.000000000 -0600
@@ -151,7 +151,11 @@ grab_ungrab_with_ignorable_modifiers (Gd
 			XGrabKey (GDK_WINDOW_XDISPLAY (rootwin),
 			          keycode,
 			          modifiers | mod_masks [i],
+#if GTK_CHECK_VERSION(3,0,0)
 			          gdk_x11_window_get_xid (rootwin),
+#elif GTK_CHECK_VERSION(2,16,0)
+				  GDK_WINDOW_XID (rootwin),
+#endif
 			          False,
 			          GrabModeAsync,
 			          GrabModeAsync);
@@ -159,7 +163,12 @@ grab_ungrab_with_ignorable_modifiers (Gd
 			XUngrabKey (GDK_WINDOW_XDISPLAY (rootwin),
 			            keycode,
 			            modifiers | mod_masks [i],
-			            gdk_x11_window_get_xid (rootwin));
+#if GTK_CHECK_VERSION(3,0,0)
+			            gdk_x11_window_get_xid (rootwin)
+#elif GTK_CHECK_VERSION(2,16,0)
+			            GDK_WINDOW_XID (rootwin)
+#endif
+				   );
 		}
 	}
 	gdk_flush();
diff -up src/volumeicon-0.5.0/src/volumeicon.c.orig src/volumeicon-0.5.0/src/volumeicon.c
--- src/volumeicon-0.5.0/src/volumeicon.c.orig	2013-02-25 08:52:49.000000000 -0700
+++ src/volumeicon-0.5.0/src/volumeicon.c	2014-05-17 08:57:35.000000000 -0600
@@ -527,6 +527,7 @@ static gboolean scale_timeout(gpointer d
 	gtk_window_get_size(GTK_WINDOW(m_scale_window), &window.width, &window.height);
 	gtk_status_icon_get_geometry(m_status_icon, NULL, &icon, NULL);
 
+#if GTK_CHECK_VERSION(3,0,0)
 	GdkWindow *root_window;
 	GdkDeviceManager *device_manager;
 	GdkDevice *pointer;
@@ -536,6 +537,15 @@ static gboolean scale_timeout(gpointer d
 	device_manager = gdk_display_get_device_manager(gdk_window_get_display(root_window));
 	pointer = gdk_device_manager_get_client_pointer(device_manager);
 	gdk_window_get_device_position(root_window, pointer, &x, &y, NULL);
+#elif GTK_CHECK_VERSION(2,16,0)
+	GdkWindow *root_window;
+	gint x, y;
+
+	root_window = gtk_widget_get_root_window(m_scale_window);
+	gdk_display_get_pointer(gdk_window_get_display(root_window), NULL, &x, &y, NULL);
+#else
+#error No GTK version
+#endif
 
 	if(scale_point_in_rect(&window, x, y) || scale_point_in_rect(&icon, x, y))
 	{
@@ -827,6 +837,7 @@ static void render_widget (cairo_t *cair
 	cairo_paint (cairo_context);
 }
 
+#if GTK_CHECK_VERSION(3,0,0)
 static void update_widget (GtkWidget *widget, gint width, gint height)
 {
 	cairo_surface_t *mask;
@@ -857,6 +868,32 @@ static void update_widget (GtkWidget *wi
 		cairo_surface_destroy(mask);
 	}
 }
+#elif GTK_CHECK_VERSION(2,0,0)
+static void update_widget (GtkWidget *widget, gint width, gint height)
+{
+	GdkPixmap *bitmap;
+	
+	bitmap = gdk_pixmap_new(NULL, width, height, 1);
+	if (bitmap != NULL) {
+		cairo_t *cairo_context = gdk_cairo_create(GDK_DRAWABLE(bitmap));
+
+		if (cairo_status(cairo_context) == CAIRO_STATUS_SUCCESS) {
+
+			render_widget(cairo_context, width, height);
+			cairo_destroy(cairo_context);
+
+			gtk_widget_input_shape_combine_mask(widget, NULL, 0, 0);
+			if (!gtk_widget_is_composited(widget))
+				gtk_widget_input_shape_combine_mask(widget, bitmap, 0, 0);
+
+			gtk_widget_shape_combine_mask(widget, NULL, 0, 0);
+			if (!gtk_widget_is_composited(widget))
+				gtk_widget_shape_combine_mask(widget, bitmap, 0, 0);
+		}
+		g_object_unref(G_OBJECT(bitmap));
+	}
+}
+#endif
 
 static gboolean on_configure (GtkWidget *widget, GdkEventConfigure *event, gpointer user_data)
 {
@@ -871,9 +908,17 @@ static gboolean on_configure (GtkWidget
 
 static gboolean on_draw (GtkWidget *widget, cairo_t *cairo_context, gpointer user_data)
 {
+#if GTK_CHECK_VERSION(3,0,0)
 	render_widget(cairo_context,
 		gtk_widget_get_allocated_width(widget),
 		gtk_widget_get_allocated_height(widget));
+#elif GTK_CHECK_VERSION(2,16,0)
+	GtkAllocation allocation;
+	gtk_widget_get_allocation(widget,&allocation);
+	render_widget(cairo_context,
+		allocation.width,
+		allocation.height);
+#endif
 	return FALSE;
 }
 
@@ -888,10 +933,17 @@ static void scale_setup()
 {
 	GdkScreen *screen;
 
+#if GTK_CHECK_VERSION(3,0,0)
 	if(config_get_use_horizontal_slider())
 		m_scale = gtk_scale_new_with_range(GTK_ORIENTATION_HORIZONTAL, 0.0, 100.0, 1.0);
 	else
 		m_scale = gtk_scale_new_with_range(GTK_ORIENTATION_VERTICAL, 0.0, 100.0, 1.0);
+#elif GTK_CHECK_VERSION(2,16,0)
+	if (config_get_use_horizontal_slider())
+		m_scale = gtk_hscale_new_with_range(0.0, 100.0, 1.0);
+	else
+		m_scale = gtk_vscale_new_with_range(0.0, 100.0, 1.0);
+#endif
 	gtk_range_set_inverted(GTK_RANGE(m_scale), TRUE);
 	gtk_scale_set_draw_value(GTK_SCALE(m_scale), config_get_show_sound_level());
 
@@ -904,15 +956,27 @@ static void scale_setup()
 			gtk_widget_set_visual(GTK_WIDGET(m_scale_window), visual);
 			gtk_widget_set_app_paintable(GTK_WIDGET(m_scale_window), TRUE);
 			gtk_widget_realize(GTK_WIDGET(m_scale_window));
+#if GTK_CHECK_VERSION(3,0,0)
 			gdk_window_set_background_pattern(gtk_widget_get_window(GTK_WIDGET(m_scale_window)), NULL);
+#elif GTK_CHECK_VERSION(2,16,0)
+			gdk_window_set_back_pixmap(gtk_widget_get_window(GTK_WIDGET(m_scale_window)), NULL, FALSE);
+#endif
 			gtk_window_set_type_hint(GTK_WINDOW(m_scale_window), GDK_WINDOW_TYPE_HINT_DOCK);
 
 			g_signal_connect(G_OBJECT(m_scale_window), "draw", G_CALLBACK(on_draw), NULL);
 			g_signal_connect(G_OBJECT(m_scale_window), "configure-event", G_CALLBACK(on_configure), NULL);
 
+#if GTK_CHECK_VERSION(3,0,0)
 			update_widget(GTK_WIDGET(m_scale_window),
 				gtk_widget_get_allocated_width(GTK_WIDGET(m_scale_window)),
 				gtk_widget_get_allocated_height(GTK_WIDGET(m_scale_window)));
+#elif GTK_CHECK_VERSION(2,16,0)
+			GtkAllocation allocation;
+			gtk_widget_get_allocation(GTK_WIDGET(m_scale_window), &allocation);
+			update_widget(GTK_WIDGET(m_scale_window),
+				allocation.width,
+				allocation.height);
+#endif
 		}
 	}