60a062132a
- relibc: update local fork to upstream 99675e2b, switch recipe to path source - prefix.mk: auto-sync relibc artifacts from sysroot to gcc-install - script.rs: add prefix sysroot -L to LDFLAGS for correct libc.a resolution - config.rs: env vars always override cookbook.toml (fix COOKBOOK_OFFLINE bug) - docs: add UPSTREAM-SYNC-PROCEDURE.md for repeatable fork updates