--- tools/build/src/tools/darwin.jam.orig	2023-12-18 23:33:52
+++ tools/build/src/tools/darwin.jam	2023-12-18 23:35:46
@@ -463,7 +463,7 @@
                 if $(support-ppc64) {
                     options = -arch x86_64 -arch ppc64 ;
                 } else {
-                    errors.user-error "64-bit PPC compilation is not supported when targeting OSX 10.6 or later" ;
+                    options = -arch x86_64 -arch arm64 ;
                 }                
             } else {
                 options = -arch i386 -arch ppc ;