updated build system

support/3rd_party/icu_configure.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-if [ "$(uname -m)" == "arm64" ] &&
+if ([ "$(uname -m)" == "arm64" ] || [ "$(uname -m)" == "aarch64" ])  &&
   [ "${PROJECT_IS_ARM64}" == "0" ]; then
   HOST_CFG="--host=x86_64-apple-darwin"
   export CC="clang -arch x86_64"