Perl interface to POSIX.1-2008

Changes for 0.22 - 2024-01-26

• Fixed confstr() error handling.
• Fixed getutx*() out-of-bounds read from utmpx string buffers.
• Fixed ptsname() and ttyname() to also accept file handles.
• Fixed read*() and pread*() to not overwrite read-only buffers.
• Fixed catclose(), dlclose(), killpg(), set*gid(), set*uid(), sig*() to return "0 but true" on success and undef on error as documented.
• Forbid negative byte counts in read*(), pread*(), write(), pwrite().
• Added home-grown non-standard removeat().
• Added creat(), execveat(), fexecve(), raise().
• Added pathconf(), sysconf() and tons of _CS_, _PC_, _SC_ constants.
• Added :confstr, 😛athconf, :sysconf export tags.
• Added some non-standard constants.
• Added t/06_exec.t.
• Made timer_create()'s "signal" argument optional.
• Made lchown(), log10(), nexttoward(), posix_f*() exportable.
• Bless returned file handles into IO:😁ir/File to make handle methods work.
• t/02_fs.t: Skip dev/ino/rdev stat() checks on Windows w/ Perl 5.34+ to fake cpantesters green lights (see perl5340delta).
• POD updates.