Merge changes from topics 'ndk-compiler-rt_extras', 'ndk-libc++-libdl'

* changes:
  Use libcompiler-rt_extras with NDK builds.
  Always link libdl with libc++ for the NDK.
diff --git a/core/binary.mk b/core/binary.mk
index b9cff65..058c7e4 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -216,7 +216,6 @@
     ifneq (,$(filter r10 r11,$(LOCAL_NDK_VERSION)))
       ifeq (c++_static,$(LOCAL_NDK_STL_VARIANT))
         my_ndk_stl_static_lib := $(my_libcxx_libdir)/libc++_static.a
-        my_ldlibs += -ldl
       else
         my_ndk_stl_shared_lib_fullpath := $(my_libcxx_libdir)/libc++_shared.so
       endif
@@ -225,7 +224,6 @@
         my_ndk_stl_static_lib := \
           $(my_libcxx_libdir)/libc++_static.a \
           $(my_libcxx_libdir)/libc++abi.a
-        my_ldlibs += -ldl
       else
         my_ndk_stl_shared_lib_fullpath := $(my_libcxx_libdir)/libc++_shared.so
       endif
@@ -236,6 +234,8 @@
       endif
     endif
 
+    my_ldlibs += -ldl
+
     my_ndk_stl_cppflags := -std=c++11
   else # LOCAL_NDK_STL_VARIANT is not c++_* either
   ifneq (,$(filter gnustl_%, $(LOCAL_NDK_STL_VARIANT)))
@@ -418,7 +418,7 @@
 
 ifneq ($(LOCAL_NO_LIBCOMPILER_RT),true)
 # Add in libcompiler_rt for all regular device builds
-ifeq (,$(LOCAL_SDK_VERSION)$(WITHOUT_LIBCOMPILER_RT))
+ifeq (,$(WITHOUT_LIBCOMPILER_RT))
   my_static_libraries += $(COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES)
 endif
 endif