Index: libcxx/lib/abi/CMakeLists.txt
===================================================================
--- libcxx/lib/abi/CMakeLists.txt
+++ libcxx/lib/abi/CMakeLists.txt
@@ -64,12 +64,15 @@
     message(STATUS "ABI list file not generated for configuration ${abi_list_identifier}, `check-cxx-abilist` will not be available.")
   endif()

-  add_custom_target(generate-cxx-abilist
-    COMMAND "${Python3_EXECUTABLE}" "${LIBCXX_SOURCE_DIR}/utils/generate_abi_list.py"
-            --output "${abi_list_file}"
-            "$<TARGET_SONAME_FILE:cxx_shared>"
-    DEPENDS cxx_shared
-    COMMENT "Generating the ABI list file for configuration ${abi_list_identifier}")
+  if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxabi" OR
+         (APPLE AND "${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "default"))
+    add_custom_target(generate-cxx-abilist
+      COMMAND "${Python3_EXECUTABLE}" "${LIBCXX_SOURCE_DIR}/utils/generate_abi_list.py"
+              --output "${abi_list_file}"
+              "$<TARGET_SONAME_FILE:cxx_shared>"
+      DEPENDS cxx_shared
+      COMMENT "Generating the ABI list file for configuration ${abi_list_identifier}")
+  endif()
 else()
   message(STATUS "Not building a shared library for libc++ -- the ABI list targets will not be available.")
 endif()