Re: [PATCH] fmt-merge-msg: avoid open "-|" list form for Perl 5.6

Eric Wong, Tue, Feb 21, 2006 21:56:18 +0100:

quoted

quoted

 * Eric, thanks for the hint.  I have this four-patch series.
   Could people with perl 5.6 please check them?

Does not work here (ActiveState Build 811, Perl 5.8.6):

$ perl -e 'open(F, "-|")'
'-' is not recognized as an internal or external command,
operable program or batch file.

Both "-|" and "|-" forms of open() use fork() internally.  Iirc, fork()
doesn't work too well on that platform.

AFAICS, it does not exist. There is emulation of it in that active-perl,
though so this works:

    if ( !fork ) { something }

but not "too well" (you have to be carefule not spawn too many (which
is around 50) processes. Perl'll crash otherwise).