lib/std/Build/Cache.zig | 37 ++++++++++++++++++++++++++++++++
 lib/std/Build/Step.zig  |  2 +-
 lib/std/posix.zig       |  2 ++
 src/Compilation.zig     |  2 +-
 src/Zcu/PerThread.zig   | 34 +++++++++++++++++++++++------
 5 files changed, 69 insertions(+), 8 deletions(-)