Re: syscmd broken on FreeBSD and AIX

[Bruno Haible]

Eric Blake wrote:
> Instead of using -- to force sh to realize the command being passed is
> intended to be a script to run (even if it starts with - or +), it is
> also possible to prepend a space.

Indeed, that it simpler than testing whether the command starts with - or +.

> I'm thinking of trying the alternative of not injecting "--" after
> all, but instead munging the given argument to supply a leading space.
> But that we need a new version of your patch.  Do you want to try and
> rework it along those lines, or should I make time for that?

Find attached a proposed patch. Tested on FreeBSD 13.1 and AIX 7.2; with
it, all m4 tests pass.

Bruno

0001-syscmd-Make-it-work-again-for-most-commands-on-FreeB.patch
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