test(1) fails to properly handle leading zeroes on integers

[heatd]

Example problem ('test' = GNU coreutils):

$ umask
0022
$ test $(umask) -eq 22
$ echo $?
0
$ toybox test $(umask) -eq 22
$ echo $?
1

This breaks xz's configure script, which thinks there's no POSIX shell because of this.
https://github.com/tukaani-project/xz/blob/dbca3d078ec581600600abebbb18769d3d713914/m4/posix-shell.m4#L36-L38

Not sure what the proper fix here is. Should leading 0's be interpreted as octal?

[heatd]

Actually, I'm more confused... 'test' should be dash/bash's builtin, but it seems to fail transparently on my toybox-as-utils system... I'll need to look into this, please disregard for a while

[heatd]

Alright, my problem was unrelated, but this still seems to not be implemented correctly in toybox anyway