diff --git a/gcc/config.gcc b/gcc/config.gcc
index f64553578bf0..d85608bc5369 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1237,6 +1237,8 @@ aarch64-*-darwin* )
 	tmake_file="${tmake_file} aarch64/t-aarch64 aarch64/t-aarch64-darwin"
 	tm_defines="${tm_defines} TARGET_DEFAULT_ASYNC_UNWIND_TABLES=1"
 	tm_defines="${tm_defines} DISABLE_AARCH64_AS_CRC_BUGFIX=1"
+	# Choose a default CPU version that will work for all current releases.
+	with_cpu=${with_cpu:-apple-m1}
 	;;
 aarch64*-*-freebsd*)
 	tm_file="${tm_file} elfos.h ${fbsd_tm_file}"