[Module-build-general] Re: Understanding $Config{startperl} in MacPerl

[Ken W. <ke...@ma...>]

On Sunday, December 1, 2002, at 01:25  PM, em...@ap... wrote:

> On Friday, November 29, 2002, at 09:19  PM, Ken Williams wrote:
>
>> I see that in MacPerl (not perl for OS X), $Config{startperl} 
>> is set to
>>
>>     "Perl -Sx \"{0}\" {\"Parameters\"}; Exit {Status}\n#!perl"
>>
>> in Config.pm .  I'm not sure what that extra stuff is before 
>> the  shebang, but when I run a script that contains that 
>> (using MacPerl  5.6.1), I just get a perl syntax error.  When 
>> I remove it, all is > well.
>>
>> Can anyone enlighten about what that first line is for?
>
> That line is a MacPerl compatibility with MPW (Macintosh 
> Programmer's  Workshop), the old Mac development environment.  
> According the MacPerl  book, this line allow scripts to be 
> called directly from MPW without  the need to call the Perl 
> tool directly.  MacPerl knows to ignore this  line, but Mac OS 
> X perl does not.

Hmm, from my testing, MacPerl 5.6.1 didn't know how to ignore 
that line either.  I got syntax errors until I removed it.

> I think it is safe to leave it out (and only include the 
> appropriate  shebang line), as if anyone is still using MPW, 
> they are probably used  to adding that line to Perl scripts.

Okay, thanks, that's what I'll do.

  -Ken