On Friday, September 26, 2014 10:00:08 AM UTC+2, Andreas Schwab wrote:
> Alexandre Ferrieux <[email protected]> writes:
>
> > So, what about, in bash's initialization, detecting that we are invoked as
> > "/bin/sh",
>
> It already does. See (bash) Bash POSIX Mode.
Yes, it does do this detection, but too late for our concern, since things
occur in the following order:
(1) set_shell_name(argv[0]) => this detects "sh" and sets 'act_like_sh'
(2) shell_initialize() => this decides to import funcs from env depending on
flags like 'posixly_correct'
(3) if (act_like_sh) ... sv_strict_posix ("POSIXLY_CORRECT")
So it seems the order is wrong. As a consequence, and this is confirmed by
experience, the #!/bin/sh prefix behaves as featuristic bash.
My suggestion then is to undo that mistake.
-Alex
