diff --git a/libshims/Android.mk b/libshims/Android.mk
index 53e0911..79c49bf 100644
--- a/libshims/Android.mk
+++ b/libshims/Android.mk
@@ -40,9 +40,10 @@ LOCAL_MODULE_TAGS := optional
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
-LOCAL_SRC_FILES := DisplayEventReceiver.c
+LOCAL_SRC_FILES := camera_hal.cpp
 LOCAL_MODULE := libshim_camera_hal
 LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libgui
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
diff --git a/libshims/DisplayEventReceiver.c b/libshims/camera_hal.cpp
similarity index 66%
rename from libshims/DisplayEventReceiver.c
rename to libshims/camera_hal.cpp
index 3fce3b5..15339cb 100644
--- a/libshims/DisplayEventReceiver.c
+++ b/libshims/camera_hal.cpp
@@ -14,6 +14,15 @@
  * limitations under the License.
  */
 
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
 /* TODO: Actually provide implementations for these function! */
 
-void _ZN7android20DisplayEventReceiverC1Ev() {}
+extern "C" void _ZN7android20DisplayEventReceiverC1Ev() {}
+
+EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name);
+
+extern "C" void _Z35eglQueryStringImplementationANDROIDPvi(EGLDisplay dpy, EGLint name){
+    eglQueryStringImplementationANDROID(dpy, name);
+}