Exempt some RROs from building against SDK

If an RRO is depending on the source module to import its resources,
this trips up the link check because the source module may not be
building against the SDK. Exempt these RROs from the rule.

Bug: 123510624
Test: m
Change-Id: Ie0e05ce6d31dd3a0eafb14ace426da2bc15fb740
diff --git a/core/generate_enforce_rro.mk b/core/generate_enforce_rro.mk
index c88c779..1bec6c3 100644
--- a/core/generate_enforce_rro.mk
+++ b/core/generate_enforce_rro.mk
@@ -27,10 +27,14 @@
 LOCAL_AAPT_FLAGS += --auto-add-overlay
 LOCAL_RESOURCE_DIR := $(enforce_rro_source_overlays)
 
-ifeq (framework-res__auto_generated_rro,$(enforce_rro_module))
-LOCAL_PRIVATE_PLATFORM_APIS := true
+ifneq (,$(LOCAL_RES_LIBRARIES))
+  # Technically we are linking against the app (if only to grab its resources),
+  # and because it's potentially not building against the SDK, we can't either.
+  LOCAL_PRIVATE_PLATFORM_APIS := true
+else ifeq (framework-res__auto_generated_rro,$(enforce_rro_module))
+  LOCAL_PRIVATE_PLATFORM_APIS := true
 else
-LOCAL_SDK_VERSION := current
+  LOCAL_SDK_VERSION := current
 endif
 
 include $(BUILD_RRO_PACKAGE)
diff --git a/core/local_systemsdk.mk b/core/local_systemsdk.mk
index 7acb57a..0f1271f 100644
--- a/core/local_systemsdk.mk
+++ b/core/local_systemsdk.mk
@@ -25,9 +25,8 @@
   ifneq (,$(filter JAVA_LIBRARIES APPS,$(LOCAL_MODULE_CLASS)))
     ifndef LOCAL_SDK_VERSION
       ifeq ($(_is_vendor_app),true)
-        ifeq (,$(filter framework-res__auto_generated_rro,$(LOCAL_MODULE)))
-          # Runtime resource overlay for framework-res is exempted from building
-          # against System SDK.
+        ifeq (,$(filter %__auto_generated_rro,$(LOCAL_MODULE)))
+          # Runtime resource overlays are exempted from building against System SDK.
           # TODO(b/35859726): remove this exception
           LOCAL_SDK_VERSION := system_current
         endif