Set up rules to build static libraries for TARGET_2ND_ARCH

The rules for the 2nd arch are set up in the second inclusion
of static_library_internal.mk.
libfoo of the 2nd arch will be built into
$(PRODUCT_OUT)/obj_$(TARGET_2ND_ARCH)/libfoo_intermediates/libfoo.a.

Bug: 11654773
Change-Id: I1d92733968fc442e9225b4df5bd1b551a81d89f7
diff --git a/core/static_library.mk b/core/static_library.mk
index 525806b..2313553 100644
--- a/core/static_library.mk
+++ b/core/static_library.mk
@@ -1,33 +1,17 @@
-###########################################################
-## Standard rules for building a static library.
-##
-## Additional inputs from base_rules.make:
-## None.
-##
-## LOCAL_MODULE_SUFFIX will be set for you.
-###########################################################
+include $(BUILD_SYSTEM)/static_library_internal.mk
 
-ifeq ($(strip $(LOCAL_MODULE_CLASS)),)
-LOCAL_MODULE_CLASS := STATIC_LIBRARIES
-endif
-ifeq ($(strip $(LOCAL_MODULE_SUFFIX)),)
-LOCAL_MODULE_SUFFIX := .a
-endif
-LOCAL_UNINSTALLABLE_MODULE := true
-ifneq ($(strip $(LOCAL_MODULE_STEM)$(LOCAL_BUILT_MODULE_STEM)),)
-$(error $(LOCAL_PATH): Cannot set module stem for a library)
-endif
+ifdef TARGET_2ND_ARCH
 
-include $(BUILD_SYSTEM)/binary.mk
+OVERRIDE_BUILT_MODULE_PATH :=
+LOCAL_BUILT_MODULE :=
+LOCAL_INSTALLED_MODULE :=
+LOCAL_MODULE_STEM :=
+LOCAL_BUILT_MODULE_STEM :=
+LOCAL_INSTALLED_MODULE_STEM :=
+LOCAL_INTERMEDIATE_TARGETS :=
 
-ifeq ($(LOCAL_RAW_STATIC_LIBRARY),true)
-LOCAL_RAW_STATIC_LIBRARY:=
-$(all_objects) : PRIVATE_TARGET_PROJECT_INCLUDES :=
-$(all_objects) : PRIVATE_TARGET_C_INCLUDES :=
-$(all_objects) : PRIVATE_TARGET_GLOBAL_CFLAGS :=
-$(all_objects) : PRIVATE_TARGET_GLOBAL_CPPFLAGS :=
+LOCAL_2ND_ARCH_VAR_PREFIX := $(TARGET_2ND_ARCH_VAR_PREFIX)
+include $(BUILD_SYSTEM)/static_library_internal.mk
+LOCAL_2ND_ARCH_VAR_PREFIX :=
+
 endif
-
-$(LOCAL_BUILT_MODULE): $(built_whole_libraries)
-$(LOCAL_BUILT_MODULE): $(all_objects)
-	$(transform-o-to-static-lib)