wctype

See merge request !339

Update toolchain

See merge request !338

This also replaces all the assembly that previously used the AT&T style
with the (in my opinion) superior Intel syntax.

I tried prepending `.att_syntax prefix`, but that did not work...

Simplify gmtime_r() day-of-year calculation, correct comment

See merge request !311

Centralize page size info in platform abstraction

See merge request !334

Handle TCSETSW and TCSETSF in ioctl

Closes #168

See merge request !324

Convert test runner to rust

See merge request !333

Use as-less cast for UTC string

See merge request !331

Test for time.h constants

See merge request !332

Use BufWriter (instead of LineWriter) for FILEs other than stdout and stderr

See merge request !328

aarch64: TLS arch_read implementation

See merge request !330