diff --git a/configure b/configure
index 3bca638459..55676f742a 100755
--- a/configure
+++ b/configure
@@ -5564,6 +5564,12 @@ elif enabled x86; then
         ;;
     esac
 
+else
+
+    if test_cpp_condition inttypes.h "UINTPTR_MAX >= UINT64_MAX"; then
+        enable fast_64bit
+    fi
+
 fi
 
 if [ "$cpu" != generic ]; then