Use xinerama_is_active attribute and drop XineramaIsActive() usage

client.c

@@ -22,7 +22,6 @@
 #include <stdio.h>
 #include <X11/Xatom.h>
 #include <X11/extensions/shape.h>
-#include <X11/extensions/Xinerama.h>
 
 #include "client.h"
 #include "tag.h"

event.c

@@ -24,7 +24,6 @@
 #include <X11/Xutil.h>
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xrandr.h>
-#include <X11/extensions/Xinerama.h>
 
 #include "screen.h"
 #include "event.h"
@@ -381,7 +380,7 @@ event_handle_maprequest(XEvent *e)
         return;
     if(!client_get_bywin(globalconf.clients, ev->window))
     {
-        if(XineramaIsActive(globalconf.display)
+        if(globalconf.screens_info->xinerama_is_active
            && XQueryPointer(e->xany.display, RootWindow(e->xany.display, screen),
                             &dummy, &dummy, &x, &y, &d, &d, &m))
             screen = screen_get_bycoord(globalconf.screens_info, screen, x, y);

screen.c

@@ -19,8 +19,6 @@
  *
  */
 
-#include <X11/extensions/Xinerama.h>
-
 #include "screen.h"
 #include "tag.h"
 #include "focus.h"
@@ -110,7 +108,7 @@ get_display_area(int screen, Statusbar *statusbar, Padding *padding)
 int
 get_phys_screen(int screen)
 {
-    if(XineramaIsActive(globalconf.display))
+    if(globalconf.screens_info->xinerama_is_active)
         return DefaultScreen(globalconf.display);
     return screen;
 }
@@ -212,7 +210,7 @@ move_client_to_screen(Client *c, int new_screen, Bool doresize)
 static void
 move_mouse_pointer_to_screen(int phys_screen)
 {
-    if(XineramaIsActive(globalconf.display))
+    if(globalconf.screens_info->xinerama_is_active)
     {
         Area area = screen_get_area(phys_screen, NULL, NULL);
         XWarpPointer(globalconf.display,
@@ -264,7 +262,7 @@ uicb_client_movetoscreen(int screen __attribute__ ((unused)), char *arg)
     int new_screen, prev_screen;
     Client *sel = globalconf.focus->client;
 
-    if(!sel || !XineramaIsActive(globalconf.display))
+    if(!sel || !globalconf.screens_info->xinerama_is_active)
         return;
 
     if(arg)

uicb.c

@@ -23,7 +23,6 @@
  * @defgroup ui_callback User Interface Callbacks
  */
 
-#include <X11/extensions/Xinerama.h>
 #include <sys/wait.h>
 
 #include "awesome.h"
@@ -82,7 +81,7 @@ uicb_spawn(int screen, char *arg)
     if(!shell && !(shell = getenv("SHELL")))
         shell = a_strdup("/bin/sh");
 
-    if(!XineramaIsActive(globalconf.display) && (tmp = getenv("DISPLAY")))
+    if(!globalconf.screens_info->xinerama_is_active && (tmp = getenv("DISPLAY")))
     {
         display = a_strdup(tmp);
         if((tmp = strrchr(display, '.')))