Fix prebuilt library dependency for multilib build

Also we don't need to include module_arch_supported.mk again, if we are
currently substituting the source build with LOCAL_PREBUILT_MODULE_FILE.

Change-Id: I444b0397d74c3153b398a050b762e49418062a86
diff --git a/core/executable_internal.mk b/core/executable_internal.mk
index 1edcd2c..a1ce7f2 100644
--- a/core/executable_internal.mk
+++ b/core/executable_internal.mk
@@ -17,7 +17,7 @@
 skip_build_from_source :=
 ifdef LOCAL_PREBUILT_MODULE_FILE
 ifeq (,$(call if-build-from-source,$(LOCAL_MODULE),$(LOCAL_PATH)))
-include $(BUILD_PREBUILT)
+include $(BUILD_SYSTEM)/prebuilt_internal.mk
 skip_build_from_source := true
 endif
 endif
diff --git a/core/host_executable.mk b/core/host_executable.mk
index ab0f8f3..ffb35d2 100644
--- a/core/host_executable.mk
+++ b/core/host_executable.mk
@@ -18,7 +18,7 @@
 skip_build_from_source :=
 ifdef LOCAL_PREBUILT_MODULE_FILE
 ifeq (,$(call if-build-from-source,$(LOCAL_MODULE),$(LOCAL_PATH)))
-include $(BUILD_PREBUILT)
+include $(BUILD_SYSTEM)/prebuilt_internal.mk
 skip_build_from_source := true
 endif
 endif
diff --git a/core/host_shared_library.mk b/core/host_shared_library.mk
index a608251..56ced01 100644
--- a/core/host_shared_library.mk
+++ b/core/host_shared_library.mk
@@ -27,7 +27,7 @@
 skip_build_from_source :=
 ifdef LOCAL_PREBUILT_MODULE_FILE
 ifeq (,$(call if-build-from-source,$(LOCAL_MODULE),$(LOCAL_PATH)))
-include $(BUILD_PREBUILT)
+include $(BUILD_SYSTEM)/prebuilt_internal.mk
 skip_build_from_source := true
 endif
 endif
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index 18bddc5..01e0954 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -86,12 +86,13 @@
 # of the shared libraries are determined.
 ifdef LOCAL_INSTALLED_MODULE
 ifdef LOCAL_SHARED_LIBRARIES
-$(my_prefix)DEPENDENCIES_ON_SHARED_LIBRARIES += $(LOCAL_MODULE):$(LOCAL_INSTALLED_MODULE):$(subst $(space),$(comma),$(LOCAL_SHARED_LIBRARIES))
+$(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)DEPENDENCIES_ON_SHARED_LIBRARIES += \
+  $(LOCAL_MODULE):$(LOCAL_INSTALLED_MODULE):$(subst $(space),$(comma),$(LOCAL_SHARED_LIBRARIES))
 
 # We also need the LOCAL_BUILT_MODULE dependency,
 # since we use -rpath-link which points to the built module's path.
 built_shared_libraries := \
-    $(addprefix $($(my_prefix)OUT_INTERMEDIATE_LIBRARIES)/, \
+    $(addprefix $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)OUT_INTERMEDIATE_LIBRARIES)/, \
     $(addsuffix $($(my_prefix)SHLIB_SUFFIX), \
         $(LOCAL_SHARED_LIBRARIES)))
 $(LOCAL_BUILT_MODULE) : $(built_shared_libraries)
@@ -213,5 +214,3 @@
 $(built_module) : $(LOCAL_ADDITIONAL_DEPENDENCIES)
 
 my_prebuilt_src_file :=
-
-LOCAL_2ND_ARCH_VAR_PREFIX :=
diff --git a/core/shared_library_internal.mk b/core/shared_library_internal.mk
index c42cf37..b5ac32a 100644
--- a/core/shared_library_internal.mk
+++ b/core/shared_library_internal.mk
@@ -25,7 +25,7 @@
 skip_build_from_source :=
 ifdef LOCAL_PREBUILT_MODULE_FILE
 ifeq (,$(call if-build-from-source,$(LOCAL_MODULE),$(LOCAL_PATH)))
-include $(BUILD_PREBUILT)
+include $(BUILD_SYSTEM)/prebuilt_internal.mk
 skip_build_from_source := true
 endif
 endif