diff --git a/libvendorsupport/include_llndk/android/llndk-versioning.h b/libvendorsupport/include_llndk/android/llndk-versioning.h
index 58cd18d..cf82fb7 100644
--- a/libvendorsupport/include_llndk/android/llndk-versioning.h
+++ b/libvendorsupport/include_llndk/android/llndk-versioning.h
@@ -14,22 +14,18 @@
 
 #pragma once
 
-/* As a vendor default header included in all vendor modules, this header MUST NOT include other
- * header files or any declarations. Only macros are allowed.
- */
-#if defined(__ANDROID_VENDOR__)
-
 // LLNDK (https://source.android.com/docs/core/architecture/vndk/build-system#ll-ndk) is similar to
 // NDK, but uses its own versioning of YYYYMM format for vendor builds. The LLNDK symbols are
-// enabled when the vendor api level is equal to or newer than the ro.board.api_level.
-#define __INTRODUCED_IN_LLNDK(vendor_api_level)                                             \
-    _Pragma("clang diagnostic push") _Pragma("clang diagnostic ignored \"-Wgcc-compat\"")   \
-            __attribute__((enable_if(                                                       \
-                    __ANDROID_VENDOR_API__ >= vendor_api_level,                             \
-                    "available in vendor API level " #vendor_api_level " that "             \
-                    "is newer than the current vendor API level. Guard the API "            \
-                    "call with '#if (__ANDROID_VENDOR_API__ >= " #vendor_api_level ")'."))) \
-            _Pragma("clang diagnostic pop")
+// enabled when the vendor api level is equal to or newer than the ro.board.api_level. These symbols
+// must be annotated in map.txt files with the `# llndk=YYYYMM` annotation. They also must be marked
+// with `__INTRODUCED_IN_LLNDK(YYYYMM)` in the header files. It leaves a no-op annotation for ABI
+// analysis.
+#if !defined(__INTRODUCED_IN_LLNDK)
+#define __INTRODUCED_IN_LLNDK(vendor_api_level) \
+    __attribute__((annotate("introduced_in_llndk=" #vendor_api_level)))
+#endif
+
+#if defined(__ANDROID_VENDOR__)
 
 // Use this macro as an `if` statement to call an API that are available to both NDK and LLNDK.
 // This returns true for the vendor modules if the vendor_api_level is less than or equal to the
@@ -39,13 +35,6 @@
 
 #else  // __ANDROID_VENDOR__
 
-// __INTRODUCED_IN_LLNDK is for LLNDK only but not for NDK. Ignore this for non-vendor modules.
-// It leaves a no-op annotation for ABI analysis.
-#if !defined(__INTRODUCED_IN_LLNDK)
-#define __INTRODUCED_IN_LLNDK(vendor_api_level) \
-    __attribute__((annotate("introduced_in_llndk=" #vendor_api_level)))
-#endif
-
 // For non-vendor modules, API_LEVEL_AT_LEAST is replaced with __builtin_available(sdk_api_level) to
 // guard the API for __INTRODUCED_IN.
 #if !defined(API_LEVEL_AT_LEAST)