Fixes <https://bugs.gnu.org/48963>.
Reported by Julien Lepiller <julien@lepiller.eu>.
This reduces peak memory consumption to something less unreasonable.
* Makefile.am (make-go): Depend on 'make-*-go' targets; remove body.
(guile-compilation-rule): New function.
(MODULES_CORE, MODULES_PACKAGES, MODULES_SYSTEM, MODULES_CLI): New
variables.
<top level>: Call 'guile-compilation-rule' 4 times.
* build-aux/compile-all.scm <top level>: Expect "--total" and
"--processed". Take them into account when displaying progress
reports.
Works around <https://bugs.gnu.org/40522>.
* build-aux/compile-all.scm (parallel-job-count*): New procedure.
<top level>: Use it instead of 'parallel-job-count'.
* build-aux/compile-all.scm <top level>: Add calls to 'force-output'
in the #:report-load and #:report-compilation procedures. Fixes a
regression introduced in 2890ad332f
whereby compilation output would be buffered, leading to a weird
visual effect.
* build-aux/compile-all.scm (%default-optimizations)
(%lightweight-optimizations): New variables.
(optimization-options): New procedure.
(compile-file*): Use it.
