x11: Require xrandr 1.5 at build time

While leaving the runtime checks in place, requiring xrandr 1.5 at build
time allows us to remove some seemingly unnecessary conditional
inclusion of functionality.

configure.ac

@@ -100,6 +100,7 @@ MUTTER_PC_MODULES="
    xkbcommon >= 0.4.3
    xkbcommon-x11
    xrender
+   xrandr >= 1.5.0
    x11-xcb
    xcb-randr
    xcb-res
@@ -381,21 +382,7 @@ fi
 AC_DEFINE_UNQUOTED([XKB_BASE], ["`$PKG_CONFIG --variable xkb_base xkeyboard-config`"],
                                [XKB base dir])
 
-RANDR_LIBS=
-found_randr=no
-AC_CHECK_LIB(Xrandr, XRRUpdateConfiguration,
-               [AC_CHECK_HEADER(X11/extensions/Xrandr.h,
-                                RANDR_LIBS=-lXrandr found_randr=yes,,
-				[#include <X11/Xlib.h>])],
-               , -lXext $ALL_X_LIBS)
-
-if test "x$found_randr" = "xyes"; then
-   AC_DEFINE(HAVE_RANDR, , [Have the Xrandr extension library])
-   PKG_CHECK_EXISTS([xrandr >= 1.5.0],
-                 AC_DEFINE([HAVE_XRANDR15],[1],[Define if you have support for XRandR 1.5 or greater]))
-fi
-
-MUTTER_LIBS="$MUTTER_LIBS $RANDR_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
+MUTTER_LIBS="$MUTTER_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
 
 found_sm=no
 case "$MUTTER_LIBS" in

src/backends/x11/meta-monitor-manager-xrandr.c

@@ -70,9 +70,7 @@ struct _MetaMonitorManagerXrandr
 
   xcb_timestamp_t last_xrandr_set_timestamp;
 
-#ifdef HAVE_XRANDR15
   GHashTable *tiled_monitor_atoms;
-#endif /* HAVE_XRANDR15 */
 
   float *supported_scales;
   int n_supported_scales;
@@ -85,14 +83,12 @@ struct _MetaMonitorManagerXrandrClass
 
 G_DEFINE_TYPE (MetaMonitorManagerXrandr, meta_monitor_manager_xrandr, META_TYPE_MONITOR_MANAGER);
 
-#ifdef HAVE_XRANDR15
 typedef struct _MetaMonitorXrandrData
 {
   Atom xrandr_name;
 } MetaMonitorXrandrData;
 
 GQuark quark_meta_monitor_xrandr_data;
-#endif /* HAVE_RANDR15 */
 
 Display *
 meta_monitor_manager_xrandr_get_xdisplay (MetaMonitorManagerXrandr *manager_xrandr)
@@ -669,7 +665,6 @@ meta_monitor_manager_xrandr_set_crtc_gamma (MetaMonitorManager *manager,
   XRRFreeGamma (gamma);
 }
 
-#ifdef HAVE_XRANDR15
 static MetaMonitorXrandrData *
 meta_monitor_xrandr_data_from_monitor (MetaMonitor *monitor)
 {
@@ -830,7 +825,6 @@ meta_monitor_manager_xrandr_init_monitors (MetaMonitorManagerXrandr *manager_xra
     }
   XRRFreeMonitors (m);
 }
-#endif
 
 static gboolean
 meta_monitor_manager_xrandr_is_transform_handled (MetaMonitorManager  *manager,
@@ -999,7 +993,6 @@ meta_monitor_manager_xrandr_constructed (GObject *object)
       manager_xrandr->has_randr15 = FALSE;
       XRRQueryVersion (manager_xrandr->xdisplay, &major_version,
                        &minor_version);
-#ifdef HAVE_XRANDR15
       if (major_version > 1 ||
           (major_version == 1 &&
            minor_version >= 5))
@@ -1008,7 +1001,6 @@ meta_monitor_manager_xrandr_constructed (GObject *object)
           manager_xrandr->tiled_monitor_atoms = g_hash_table_new (NULL, NULL);
         }
       meta_monitor_manager_xrandr_init_monitors (manager_xrandr);
-#endif
     }
 
   G_OBJECT_CLASS (meta_monitor_manager_xrandr_parent_class)->constructed (object);
@@ -1047,10 +1039,8 @@ meta_monitor_manager_xrandr_class_init (MetaMonitorManagerXrandrClass *klass)
   manager_class->change_backlight = meta_monitor_manager_xrandr_change_backlight;
   manager_class->get_crtc_gamma = meta_monitor_manager_xrandr_get_crtc_gamma;
   manager_class->set_crtc_gamma = meta_monitor_manager_xrandr_set_crtc_gamma;
-#ifdef HAVE_XRANDR15
   manager_class->tiled_monitor_added = meta_monitor_manager_xrandr_tiled_monitor_added;
   manager_class->tiled_monitor_removed = meta_monitor_manager_xrandr_tiled_monitor_removed;
-#endif
   manager_class->is_transform_handled = meta_monitor_manager_xrandr_is_transform_handled;
   manager_class->calculate_monitor_mode_scale = meta_monitor_manager_xrandr_calculate_monitor_mode_scale;
   manager_class->calculate_supported_scales = meta_monitor_manager_xrandr_calculate_supported_scales;

src/core/display.c

@@ -42,10 +42,6 @@
 #include <X11/extensions/Xdamage.h>
 #include <X11/extensions/Xfixes.h>
 
-#ifdef HAVE_RANDR
-#include <X11/extensions/Xrandr.h>
-#endif
-
 #include "backends/meta-cursor-sprite-xcursor.h"
 #include "backends/meta-cursor-tracker-private.h"
 #include "backends/meta-idle-monitor-dbus.h"

src/core/main.c

@@ -118,11 +118,6 @@ static void prefs_changed_callback (MetaPreference pref,
 static void
 meta_print_compilation_info (void)
 {
-#ifdef HAVE_RANDR
-  meta_verbose ("Compiled with randr extension\n");
-#else
-  meta_verbose ("Compiled without randr extension\n");
-#endif
 #ifdef HAVE_STARTUP_NOTIFICATION
   meta_verbose ("Compiled with startup notification\n");
 #else

src/x11/meta-x11-display.c

@@ -45,10 +45,7 @@
 #include <X11/extensions/Xdamage.h>
 #include <X11/extensions/Xfixes.h>
 #include <X11/extensions/Xinerama.h>
-
-#ifdef HAVE_RANDR
 #include <X11/extensions/Xrandr.h>
-#endif
 
 #include "backends/meta-backend-private.h"
 #include "backends/meta-logical-monitor.h"