Re: [Automake-NG] [PATCH 3/3] [ng] dist: do not exceed command line length limits, even with many files

[Stefano Lattarini]

On 07/14/2012 10:56 PM, Eric Blake wrote:
> On 07/14/2012 12:25 PM, Stefano Lattarini wrote:
> 
>>>
>>> <file command
>>>
>>> is portable, but
>>>
>>> <file { compound command; }
>>>
>>> is not.  That is, only simple commands allow you to position a
>>> redirection before the rest of the command.  'while' is a compound
>>> command, so the redirection must come last.
>>>
>> Quick and helpful as usual :-)  Thanks Eric.
>>
>> One question though: is "<file { compound command; }" also non-portable
>> if we limit ourselves to POSIX shells?
>
> [SNIP]
>
> That is, it's hard-coded into the POSIX shell grammar that a
> simple_command can start with redirections in the cmd_prefix, but a
> compound_command can ONLY have redirections after the end of the
> compound command, if you are being portable to POSIX.
> 
Ah, OK.  So it is not only non-portable, it is also non-POSIX-conforming.

Thanks for the explanation,
  Stefano