By default, OpenJDK 8 passes sysroot flags to native compiler. This is wrong,
as it will then use target include files when calling the native compiler.
Newer versions of OpenJDK have seemingly fixed this, 8 has not.

--- a/make/common/NativeCompilation.gmk
+++ b/make/common/NativeCompilation.gmk
@@ -384,10 +384,6 @@
     $$(error Unknown value for OPTIMIZATION: $$($1_OPTIMIZATION))
   endif
 
-  # Add sys root specific cflags last
-  $1_EXTRA_CFLAGS += $(SYSROOT_CFLAGS)
-  $1_EXTRA_CXXFLAGS += $(SYSROOT_CFLAGS)
-
   # Now call add_native_source for each source file we are going to compile.
   $$(foreach p,$$($1_SRCS), \
       $$(eval $$(call add_native_source,$1,$$p,$$($1_OBJECT_DIR), \
@@ -433,8 +429,6 @@
     $1_EXTRA_LDFLAGS += $(call SET_SHARED_LIBRARY_MAPFILE,$$($1_REAL_MAPFILE))
   endif
 
-  $1_EXTRA_LDFLAGS += $(SYSROOT_LDFLAGS)
-
   # Need to make sure TARGET is first on list
   $1 := $$($1_TARGET)
   ifeq ($$($1_STATIC_LIBRARY),)