samurai 0.4

New features

• Add support for --version option for compatibility with existing higher-level build tools like cmake and meson.
• Now builds on macOS, which does not support the POSIX O_DIRECTORY or st_mtim member of struct stat.
• Better messages from -d explain for missing/invalid dependencies or build log entry.

Bug fixes

• Generator action with no entry in build log was incorrectly considered dirty, causing a re-run of the ninja generation (cmake, meson, etc) on the first build.
• Avoid large stack allocations during .ninja_deps processing and when user specified a large maximum number of jobs.
• Fix -k maxfail handling when multiple jobs fail at the same time (regression in 0.3).

Cleanups

• Prefer C99 functions/types over POSIX in some cases.
• Store modification time internally as int64_t for compatibility with future ninja release and to avoid struct timespec requirement.
• Remove redundant call to stat when recording dependencies.
• Mark lexing keyword table as const to move to read-only section of executable.

Acknowledgements

Thanks to Bernhard Weichel, Jonathan Neuschäfer, Iru Cai, and Emil Velikov for bug reports and/or pull requests!