Bump GTK+ to 3.10

config.mk

@@ -26,7 +26,7 @@ GLIB_MIN_VERSION = 2.50
 GLIB_PKG_CONFIG_NAME = glib-2.0
 # GTK
 GTK_VERSION_CHECK ?= 1
-GTK_MIN_VERSION = 3.6
+GTK_MIN_VERSION = 3.10
 GTK_PKG_CONFIG_NAME = gtk+-3.0
 
 # pkg-config binary
@@ -49,12 +49,9 @@ WITH_MAGIC ?= 1
 
 # HiDPI
 HIDPI_SUPPORT_CAIRO = $(shell (${PKG_CONFIG} --atleast-version=1.14 cairo && echo 1) || echo 0)
-HIDPI_SUPPORT_GTK = $(shell (${PKG_CONFIG} --atleast-version=3.10 ${GTK_PKG_CONFIG_NAME} && echo 1) || echo 0)
 ifeq (${HIDPI_SUPPORT_CAIRO},1)
-ifeq (${HIDPI_SUPPORT_GTK},1)
 CPPFLAGS += -DHAVE_HIDPI_SUPPORT
 endif
-endif
 
 # paths
 PREFIX ?= /usr

zathura/callbacks.c

@@ -224,11 +224,7 @@ cb_scale_factor(GObject* object, GParamSpec* UNUSED(pspec), gpointer data)
     return;
   }
 
-#ifdef HAVE_HIDPI_SUPPORT
   int new_factor = gtk_widget_get_scale_factor(GTK_WIDGET(object));
-#else
-  int new_factor = 1;
-#endif
 
   double current_x;
   double current_y;

zathura/zathura.c

@@ -153,10 +153,8 @@ init_ui(zathura_t* zathura)
   g_signal_connect(G_OBJECT(zathura->ui.session->gtk.view), "refresh-view",
                    G_CALLBACK(cb_refresh_view), zathura);
 
-#ifdef HAVE_HIDPI_SUPPORT
   g_signal_connect(G_OBJECT(zathura->ui.session->gtk.view),
       "notify::scale-factor", G_CALLBACK(cb_scale_factor), zathura);
-#endif
 
   /* page view */
   zathura->ui.page_widget = gtk_grid_new();