[Bug target/70464] [arch64] create a self hosting compiler

[ge...@schorsch-tech.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70464

--- Comment #1 from ge...@schorsch-tech.de ---
Created attachment 38136
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38136&action=edit
script to "cross compile the native compiler"