diff --git a/Android.bp b/Android.bp
index 2864898..9d00645 100644
--- a/Android.bp
+++ b/Android.bp
@@ -5,7 +5,6 @@
         "-Wconversion",
         "-Wall",
         "-Werror",
-        "-std=c++14",
     ],
     shared_libs: [
         "liblog",
@@ -35,6 +34,19 @@
     export_header_lib_headers: ["libhardware_headers"],
 }
 
+cc_library_headers {
+    name: "display_intf_headers",
+    vendor_available: true,
+    export_include_dirs: [
+        "include",
+        "libcopybit",
+        "libqdutils",
+        "gralloc",
+    ],
+    header_libs: ["libhardware_headers"],
+    export_header_lib_headers: ["libhardware_headers"],
+}
+
 subdirs = [
     "libqservice",
     "libqdutils",
diff --git a/libdebug/Android.mk b/libdebug/Android.mk
index 14e5de0..bbe8555 100644
--- a/libdebug/Android.mk
+++ b/libdebug/Android.mk
@@ -5,7 +5,7 @@
 LOCAL_VENDOR_MODULE           := true
 LOCAL_MODULE_TAGS             := optional
 LOCAL_SHARED_LIBRARIES        := libdl
-LOCAL_CFLAGS                  := -DLOG_TAG=\"SDM\" -Wall -std=c++11 -Werror -fno-operator-names
+LOCAL_CFLAGS                  := -DLOG_TAG=\"SDM\" -Wall -Werror -fno-operator-names
 LOCAL_CLANG                   := true
 LOCAL_SRC_FILES               := debug_handler.cpp
 
diff --git a/libdrmutils/Android.mk b/libdrmutils/Android.mk
index 97c052b..172233f 100644
--- a/libdrmutils/Android.mk
+++ b/libdrmutils/Android.mk
@@ -8,7 +8,7 @@
                                  $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include
 LOCAL_HEADER_LIBRARIES        := display_headers
 LOCAL_SHARED_LIBRARIES        := libdrm libdl libdisplaydebug
-LOCAL_CFLAGS                  := -DLOG_TAG=\"DRMUTILS\" -Wall -std=c++11 -Werror -fno-operator-names
+LOCAL_CFLAGS                  := -DLOG_TAG=\"DRMUTILS\" -Wall  -Werror -fno-operator-names
 LOCAL_CLANG                   := true
 LOCAL_ADDITIONAL_DEPENDENCIES := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr
 LOCAL_SRC_FILES               := drm_master.cpp drm_res_mgr.cpp drm_lib_loader.cpp
diff --git a/sdm/libs/hwc2/hwc_display_primary.h b/sdm/libs/hwc2/hwc_display_primary.h
index b0e54f9..4295f52 100644
--- a/sdm/libs/hwc2/hwc_display_primary.h
+++ b/sdm/libs/hwc2/hwc_display_primary.h
@@ -83,6 +83,7 @@
   virtual HWC2::Error GetReadbackBufferFence(int32_t *release_fence);
   virtual HWC2::Error PostCommitLayerStack(int32_t *out_retire_fence);
   virtual HWC2::Error ControlIdlePowerCollapse(bool enable, bool synchronous);
+  virtual DisplayError TeardownConcurrentWriteback(void);
 
   virtual HWC2::Error SetDisplayedContentSamplingEnabledVndService(bool enabled);
   virtual HWC2::Error SetDisplayedContentSamplingEnabled(int32_t enabled, uint8_t component_mask, uint64_t max_frames) override;
@@ -93,7 +94,6 @@
                                                 int32_t samples_size[NUM_HISTOGRAM_COLOR_COMPONENTS],
                                                 uint64_t* samples[NUM_HISTOGRAM_COLOR_COMPONENTS]) override;
   std::string Dump() override;
-  virtual DisplayError TeardownConcurrentWriteback(void);
 
  private:
   HWCDisplayPrimary(CoreInterface *core_intf, BufferAllocator *buffer_allocator,