* build-aux/compile-all.scm (compile-file*): Clear *CURRENT-WARNING-PREFIX*.
* build-aux/compile-all.scm (compile-options): Rename to... (warnings): ... this. Add 'unsupported-warning'. (compile-file*): Pass '(#:warnings ...) as #:opts.
* build-aux/compile-all.scm: New file. * Makefile.am (EXTRA_DIST): Add it. (%.go, make-go): New rules.