diff --git a/engine/BUILD.gn b/engine/BUILD.gn
index 71e9255ef008e9abf037e674021fc407cad1f6d7..120061999da1ed2782a88c1f927b3155ac3ce3be 100644
--- a/engine/BUILD.gn
+++ b/engine/BUILD.gn
@@ -6,6 +6,9 @@ import("config.gni")
 if (is_clang) {
   import("//build/config/clang/clang.gni")
 }
+if (is_posix) {
+  import("//build/config/gcc/gcc_version.gni")
+}
 
 visibility = ["//sky/*"]
 
@@ -64,6 +67,10 @@ config("config") {
     cflags += [ "-Wno-uninitialized" ]
   }
 
+  if (is_posix && gcc_version >= 49) {
+    cflags += [ "-Wno-unused-but-set-variable" ]
+  }
+
   if (is_clang) {
     if (sky_gc_plugin && clang_use_chrome_plugins) {
       # TODO(GYP)
diff --git a/engine/core/dom/ElementRareData.cpp b/engine/core/dom/ElementRareData.cpp
index f6f93190f2a0c81f7192b6b76398b7fba91b9974..b264f1e39967f5ea90156ac213f251f7fa59560b 100644
--- a/engine/core/dom/ElementRareData.cpp
+++ b/engine/core/dom/ElementRareData.cpp
@@ -36,7 +36,7 @@
 namespace blink {
 
 struct SameSizeAsElementRareData : NodeRareData {
-    short indices[2];
+    short index;
     LayoutSize sizeForResizing;
     IntSize scrollOffset;
     void* pointers[9];
diff --git a/engine/platform/heap/BUILD.gn b/engine/platform/heap/BUILD.gn
index 363ea0b0b0462078931d7045b4efce40c4dadaa7..1e8ba3995ebc245cc76da0daa3c297b9899a7a48 100644
--- a/engine/platform/heap/BUILD.gn
+++ b/engine/platform/heap/BUILD.gn
@@ -16,15 +16,6 @@ source_set("heap") {
     "Visitor.cpp",
     "Visitor.h",
   ]
-  if (cpu_arch == "x86" || cpu_arch == "x64") {
-    sources += [ "asm/SaveRegisters_x86.asm" ]
-  } else if (cpu_arch == "arm") {
-    sources += [ "asm/SaveRegisters_arm.S" ]
-  } else if (cpu_arch == "arm64") {
-    sources += [ "asm/SaveRegisters_arm64.S" ]
-  } else if (cpu_arch == "mipsel") {
-    sources += [ "asm/SaveRegisters_mips.S" ]
-  }
 
   configs += [ "//sky/engine:config" ]
 
diff --git a/viewer/platform/webthemeengine_impl.cc b/viewer/platform/webthemeengine_impl.cc
index 823c2cf1e9440f57a9c6e2f9a33b7cf8a423c3d0..e543c8e7051e12c76ce1b24ef860d0d72cdc4e77 100644
--- a/viewer/platform/webthemeengine_impl.cc
+++ b/viewer/platform/webthemeengine_impl.cc
@@ -16,6 +16,7 @@ using blink::WebThemeEngine;
 
 namespace sky {
 
+#if !defined(OS_ANDROID)
 static ui::NativeTheme::Part NativeThemePart(
     WebThemeEngine::Part part) {
   switch (part) {
@@ -75,6 +76,7 @@ static ui::NativeTheme::State NativeThemeState(
       return ui::NativeTheme::kDisabled;
   }
 }
+#endif
 
 static void GetNativeThemeExtraParams(
     WebThemeEngine::Part part,
@@ -161,10 +163,14 @@ static void GetNativeThemeExtraParams(
 }
 
 blink::WebSize WebThemeEngineImpl::getSize(WebThemeEngine::Part part) {
+#if defined(OS_ANDROID)
+  return blink::WebSize();
+#else
   ui::NativeTheme::ExtraParams extra;
   return ui::NativeTheme::instance()->GetPartSize(NativeThemePart(part),
                                                    ui::NativeTheme::kNormal,
                                                    extra);
+#endif
 }
 
 void WebThemeEngineImpl::paint(
@@ -176,12 +182,14 @@ void WebThemeEngineImpl::paint(
   ui::NativeTheme::ExtraParams native_theme_extra_params;
   GetNativeThemeExtraParams(
       part, state, extra_params, &native_theme_extra_params);
+#if !defined(OS_ANDROID)
   ui::NativeTheme::instance()->Paint(
       canvas,
       NativeThemePart(part),
       NativeThemeState(state),
       gfx::Rect(rect),
       native_theme_extra_params);
+#endif
 }
 
 void WebThemeEngineImpl::paintStateTransition(blink::WebCanvas* canvas,
@@ -190,6 +198,7 @@ void WebThemeEngineImpl::paintStateTransition(blink::WebCanvas* canvas,
                                               WebThemeEngine::State endState,
                                               double progress,
                                               const blink::WebRect& rect) {
+#if !defined(OS_ANDROID)
   ui::NativeTheme::instance()->PaintStateTransition(
       canvas,
       NativeThemePart(part),
@@ -197,6 +206,7 @@ void WebThemeEngineImpl::paintStateTransition(blink::WebCanvas* canvas,
       NativeThemeState(endState),
       progress,
       gfx::Rect(rect));
+#endif
 }
 
 }  // namespace sky