All changed files:
- Put the shell in POSIX mode if it has an '-o posix' option.
- Remove nonsense disabling 'set -x' on bash. It's not broken.
bin/package, src/cmd/INIT/package.sh:
- Add check blocking native zsh mode (e.g., "$path" conflicts).
Using a 'sh -> zsh' symlink works, so recommend that.
- Remove old ksh93 version check for a supposed conflict with
libcmd. It was broken; it would revert to /bin/sh, but on illumos
distributions, /bin/sh is a ksh93 of a version that is supposedly
affected. It builds fine anyway.
- Rewrite checksh() to incorporate the shell compatibility checks
that were previously in two different places in 'package'.
bin/ignore, src/cmd/INIT/ignore.sh,
bin/silent, src/cmd/INIT/silent.sh:
- Change bad check for a full POSIX 'export' command (no, $RANDOM
has nothing to do with that) with a proper feature test.
9b45f2ccbe