diff --git a/hw/xquartz/darwin.c b/hw/xquartz/darwin.c
index c8eade89c..93697a994 100644
--- a/hw/xquartz/darwin.c
+++ b/hw/xquartz/darwin.c
@@ -792,7 +792,7 @@ xf86SetRootClip (ScreenPtr pScreen, int enable)
     WindowPtr	pChild;
     Bool	WasViewable = (Bool)(pWin->viewable);
     Bool	anyMarked = TRUE;
-    RegionPtr	pOldClip = NULL, bsExposed;
+    RegionPtr	pOldClip = NULL;
     WindowPtr   pLayerWin;
     BoxRec	box;
 
diff --git a/hw/xquartz/mach-startup/bundle-main.c b/hw/xquartz/mach-startup/bundle-main.c
index 7ac5469eb..75b39392a 100644
--- a/hw/xquartz/mach-startup/bundle-main.c
+++ b/hw/xquartz/mach-startup/bundle-main.c
@@ -74,7 +74,7 @@ extern int noPanoramiXExtension;
 #endif
 
 static char __crashreporter_info_buff__[4096] = {0};
-static const char *__crashreporter_info__ = &__crashreporter_info_buff__[0];
+static const char *__crashreporter_info__ __attribute__((__used__)) = &__crashreporter_info_buff__[0];
 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
 // This is actually a toolchain requirement, but I'm not sure the correct check,
 // but it should be fine to just only include it for Leopard and later.  This line
diff --git a/hw/xquartz/quartz.c b/hw/xquartz/quartz.c
index e21303ccd..26b2c1f38 100644
--- a/hw/xquartz/quartz.c
+++ b/hw/xquartz/quartz.c
@@ -62,6 +62,7 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <IOKit/pwr_mgt/IOPMLib.h>
+#include <pthread.h>
 
 #include <rootlessCommon.h>
 #include <Xplugin.h>
@@ -246,6 +247,40 @@ void QuartzUpdateScreens(void) {
     quartzProcs->UpdateScreen(pScreen);
 }
 
+static void pokeActivityCallback(CFRunLoopTimerRef timer, void *info) {
+    UpdateSystemActivity(OverallAct);
+}
+
+static void QuartzScreenSaver(int state) {
+    static CFRunLoopTimerRef pokeActivityTimer = NULL;
+    static CFRunLoopTimerContext pokeActivityContext = { 0, NULL, NULL, NULL, NULL };
+    static pthread_mutex_t pokeActivityMutex = PTHREAD_MUTEX_INITIALIZER;
+
+    pthread_mutex_lock(&pokeActivityMutex);
+    
+    if(state) {
+        if(pokeActivityTimer == NULL)
+            goto QuartzScreenSaverEnd;
+
+        CFRunLoopTimerInvalidate(pokeActivityTimer);
+        CFRelease(pokeActivityTimer);
+        pokeActivityTimer = NULL;
+    } else {
+        if(pokeActivityTimer != NULL)
+            goto QuartzScreenSaverEnd;
+        
+        pokeActivityTimer = CFRunLoopTimerCreate(NULL, CFAbsoluteTimeGetCurrent(), 30, 0, 0, pokeActivityCallback, &pokeActivityContext);
+        if(pokeActivityTimer == NULL) {
+            ErrorF("Unable to create pokeActivityTimer.\n");
+            goto QuartzScreenSaverEnd;
+        }
+
+        CFRunLoopAddTimer(CFRunLoopGetMain(), pokeActivityTimer, kCFRunLoopCommonModes);
+    }
+QuartzScreenSaverEnd:
+    pthread_mutex_unlock(&pokeActivityMutex);
+}
+
 void QuartzShowFullscreen(int state) {
     int i;
     
@@ -256,6 +291,8 @@ void QuartzShowFullscreen(int state) {
         return;
     }
     
+    QuartzScreenSaver(!state);
+    
     if(XQuartzFullscreenVisible == state)
         return;
     
diff --git a/hw/xquartz/quartzRandR.c b/hw/xquartz/quartzRandR.c
index 298ec0a52..296f9b669 100644
--- a/hw/xquartz/quartzRandR.c
+++ b/hw/xquartz/quartzRandR.c
@@ -438,18 +438,16 @@ static Bool QuartzRandRSetConfig (ScreenPtr           pScreen,
 static Bool _QuartzRandRUpdateFakeModes (ScreenPtr pScreen) {
     QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
 
-    if (pQuartzScreen->displayCount == 1) {
-        if(pQuartzScreen->fullscreenMode.ref)
-            CFRelease(pQuartzScreen->fullscreenMode.ref);
-        if(pQuartzScreen->currentMode.ref)
-            CFRelease(pQuartzScreen->currentMode.ref);
+    if(pQuartzScreen->fullscreenMode.ref)
+        CFRelease(pQuartzScreen->fullscreenMode.ref);
+    if(pQuartzScreen->currentMode.ref)
+        CFRelease(pQuartzScreen->currentMode.ref);
         
-        if (!QuartzRandRCopyCurrentModeInfo(pQuartzScreen->displayIDs[0],
-                                            &pQuartzScreen->fullscreenMode))
-            return FALSE;
+    if (!QuartzRandRCopyCurrentModeInfo(pQuartzScreen->displayIDs[0],
+                                        &pQuartzScreen->fullscreenMode))
+        return FALSE;
 
-        CFRetain(pQuartzScreen->fullscreenMode.ref);  /* This extra retain is for currentMode's copy */
-    } else {
+    if (pQuartzScreen->displayCount > 1) {
         pQuartzScreen->fullscreenMode.width = pScreen->width;
         pQuartzScreen->fullscreenMode.height = pScreen->height;
         if(XQuartzIsRootless)
@@ -467,6 +465,11 @@ static Bool _QuartzRandRUpdateFakeModes (ScreenPtr pScreen) {
     } else {
         pQuartzScreen->currentMode = pQuartzScreen->fullscreenMode;
     }
+
+    /* This extra retain is for currentMode's copy.
+     * fullscreen and rootless share a retain.
+     */
+    CFRetain(pQuartzScreen->currentMode.ref);
     
     DEBUG_LOG("rootlessMode: %d x %d\n", (int)pQuartzScreen->rootlessMode.width, (int)pQuartzScreen->rootlessMode.height);
     DEBUG_LOG("fullscreenMode: %d x %d\n", (int)pQuartzScreen->fullscreenMode.width, (int)pQuartzScreen->fullscreenMode.height);
diff --git a/os/log.c b/os/log.c
index fdcf91c31..1ad87dfc2 100644
--- a/os/log.c
+++ b/os/log.c
@@ -121,7 +121,7 @@ static Bool needBuffer = TRUE;
 #include <AvailabilityMacros.h>
 
 static char __crashreporter_info_buff__[4096] = {0};
-static const char *__crashreporter_info__ = &__crashreporter_info_buff__[0];
+static const char *__crashreporter_info__ __attribute__((__used__)) = &__crashreporter_info_buff__[0];
 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
 // This is actually a toolchain requirement, but I'm not sure the correct check,        
 // but it should be fine to just only include it for Leopard and later.  This line