build.zig              |   2 +-
 lib/std/fs/Dir.zig     | 171 ++++++++++++++++++++++----------
 lib/std/fs/test.zig    |  86 ++++++++++++++--
 lib/std/mem.zig        |  20 ++++
 tools/update_mingw.zig |  42 +++++---
 5 files changed, 241 insertions(+), 80 deletions(-)