diff --git a/libs/gui/Android.mk b/libs/gui/Android.mk
index ca94aa3..fffe28a 100644
--- a/libs/gui/Android.mk
+++ b/libs/gui/Android.mk
@@ -1,7 +1,10 @@
-LOCAL_PATH:= $(call my-dir)
+LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= \
+LOCAL_CLANG := true
+LOCAL_CPPFLAGS := -std=c++11
+
+LOCAL_SRC_FILES := \
 	IGraphicBufferConsumer.cpp \
 	IConsumerListener.cpp \
 	BitTube.cpp \
@@ -47,7 +50,7 @@
 	liblog
 
 
-LOCAL_MODULE:= libgui
+LOCAL_MODULE := libgui
 
 ifeq ($(TARGET_BOARD_PLATFORM), tegra)
 	LOCAL_CFLAGS += -DDONT_USE_FENCE_SYNC
diff --git a/libs/gui/SensorEventQueue.cpp b/libs/gui/SensorEventQueue.cpp
index 1305e9f..6f5f204 100644
--- a/libs/gui/SensorEventQueue.cpp
+++ b/libs/gui/SensorEventQueue.cpp
@@ -157,7 +157,7 @@
         ssize_t size = ::send(mSensorChannel->getFd(), &mNumAcksToSend, sizeof(mNumAcksToSend),
                 MSG_DONTWAIT | MSG_NOSIGNAL);
         if (size < 0) {
-            ALOGE("sendAck failure %d %d", size, mNumAcksToSend);
+            ALOGE("sendAck failure %zd %d", size, mNumAcksToSend);
         } else {
             mNumAcksToSend = 0;
         }
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 6446926..547dc7d 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -752,14 +752,14 @@
 
 status_t ScreenshotClient::update(const sp<IBinder>& display, Rect sourceCrop,
         bool useIdentityTransform) {
-    return ScreenshotClient::update(display, sourceCrop, 0, 0, 0, -1UL,
+    return ScreenshotClient::update(display, sourceCrop, 0, 0, 0, -1U,
             useIdentityTransform, ISurfaceComposer::eRotateNone);
 }
 
 status_t ScreenshotClient::update(const sp<IBinder>& display, Rect sourceCrop,
         uint32_t reqWidth, uint32_t reqHeight, bool useIdentityTransform) {
     return ScreenshotClient::update(display, sourceCrop, reqWidth, reqHeight,
-            0, -1UL, useIdentityTransform, ISurfaceComposer::eRotateNone);
+            0, -1U, useIdentityTransform, ISurfaceComposer::eRotateNone);
 }
 
 void ScreenshotClient::release() {
diff --git a/libs/ui/Android.mk b/libs/ui/Android.mk
index eec97be..eff540a 100644
--- a/libs/ui/Android.mk
+++ b/libs/ui/Android.mk
@@ -12,10 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-LOCAL_PATH:= $(call my-dir)
+LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= \
+LOCAL_CLANG := true
+LOCAL_CPPFLAGS := -std=c++11
+
+LOCAL_SRC_FILES := \
 	Fence.cpp \
 	FramebufferNativeWindow.cpp \
 	FrameStats.cpp \
@@ -38,7 +41,7 @@
 LOCAL_CFLAGS += -DFRAMEBUFFER_FORCE_FORMAT=$(BOARD_FRAMEBUFFER_FORCE_FORMAT)
 endif
 
-LOCAL_MODULE:= libui
+LOCAL_MODULE := libui
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/libs/ui/FramebufferNativeWindow.cpp b/libs/ui/FramebufferNativeWindow.cpp
index 918f2e7..295300e 100644
--- a/libs/ui/FramebufferNativeWindow.cpp
+++ b/libs/ui/FramebufferNativeWindow.cpp
@@ -29,7 +29,9 @@
 
 #include <ui/ANativeObjectBase.h>
 #include <ui/Fence.h>
+#define INCLUDED_FROM_FRAMEBUFFER_NATIVE_WINDOW_CPP
 #include <ui/FramebufferNativeWindow.h>
+#undef INCLUDED_FROM_FRAMEBUFFER_NATIVE_WINDOW_CPP
 #include <ui/Rect.h>
 
 #include <EGL/egl.h>
diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index e768f13..f4e781b 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -45,31 +45,29 @@
     : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()),
       mInitCheck(NO_ERROR), mId(getUniqueId())
 {
-    width  = 
-    height = 
-    stride = 
-    format = 
+    width  =
+    height =
+    stride =
+    format =
     usage  = 0;
     handle = NULL;
 }
 
-GraphicBuffer::GraphicBuffer(uint32_t w, uint32_t h, 
-        PixelFormat reqFormat, uint32_t reqUsage)
+GraphicBuffer::GraphicBuffer(int w, int h, PixelFormat reqFormat, int reqUsage)
     : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()),
       mInitCheck(NO_ERROR), mId(getUniqueId())
 {
-    width  = 
-    height = 
-    stride = 
-    format = 
+    width  =
+    height =
+    stride =
+    format =
     usage  = 0;
     handle = NULL;
     mInitCheck = initSize(w, h, reqFormat, reqUsage);
 }
 
-GraphicBuffer::GraphicBuffer(uint32_t w, uint32_t h,
-        PixelFormat inFormat, uint32_t inUsage,
-        uint32_t inStride, native_handle_t* inHandle, bool keepOwnership)
+GraphicBuffer::GraphicBuffer(int w, int h, PixelFormat inFormat, int inUsage,
+        int inStride, native_handle_t* inHandle, bool keepOwnership)
     : BASE(), mOwner(keepOwnership ? ownHandle : ownNone),
       mBufferMapper(GraphicBufferMapper::get()),
       mInitCheck(NO_ERROR), mId(getUniqueId())
@@ -131,8 +129,7 @@
             const_cast<GraphicBuffer*>(this));
 }
 
-status_t GraphicBuffer::reallocate(uint32_t w, uint32_t h, PixelFormat f,
-        uint32_t reqUsage)
+status_t GraphicBuffer::reallocate(int w, int h, PixelFormat f, int reqUsage)
 {
     if (mOwner != ownData)
         return INVALID_OPERATION;
@@ -171,10 +168,10 @@
 
 status_t GraphicBuffer::lock(uint32_t usage, const Rect& rect, void** vaddr)
 {
-    if (rect.left < 0 || rect.right  > this->width || 
+    if (rect.left < 0 || rect.right  > this->width ||
         rect.top  < 0 || rect.bottom > this->height) {
         ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)",
-                rect.left, rect.top, rect.right, rect.bottom, 
+                rect.left, rect.top, rect.right, rect.bottom,
                 this->width, this->height);
         return BAD_VALUE;
     }
@@ -314,7 +311,7 @@
     if (numFds >= maxNumber || numInts >= (maxNumber - 10)) {
         width = height = stride = format = usage = 0;
         handle = NULL;
-        ALOGE("unflatten: numFds or numInts is too large: %d, %d",
+        ALOGE("unflatten: numFds or numInts is too large: %zd, %zd",
                 numFds, numInts);
         return BAD_VALUE;
     }