From johnkw@univaud.com

All that's required is a command to run that prints to stdout. In this example I use another Perl command, but it could be anything.

The complete redirect_fail.pl file to reproduce is then​:
system('perl -e "print qq(hi) or die \$!; close(STDOUT) or die \$!;"');

It only fails if it is "extension-launched" via the .pl extension. Ie, this fails​:
C​:\>redirect_fail.pl > foo.txt
Bad file descriptor at -e line 1.

But this works as expected​:
C​:\>c​:\perl\bin\perl.exe redirect_fail.pl > foo.txt

Known to fail in both cygwin and ActiveState Perls. Known to fail on Win 2000 and XP. (Does not fail however on Win 2008 R2.)

Note "un-redirected system call fails" because redirected system calls work fine. Also the backtick operator works in all tested scenarios.

From johnkw@univaud.com

Another workaround is to use IPC​::Open3​::open3().

From johnkw@univa.com

Note that $^X should report the same path in any of the cases, and does even in the failing cases. (So it's not an issue of .pl invoking a different command line.)

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The RT System itself - Status changed from 'new' to 'open'

From itcharlie@gmail.com

We no longer support Windows 2000 and Windows XP. In Windows 7 with Strawberry Perl 5.24.1, the code snippet works just fine​:

system('perl -e "print qq(hi) or die \$!; close(STDOUT) or die \$!;"');

++++++
PS C​:\Users\cgonzalez\Desktop> perl .\redirect.pl
hi
PS C​:\Users\cgonzalez\Desktop> perl .\redirect.pl >foot.txt
PS C​:\Users\cgonzalez\Desktop> cat .\foot.txt
hi
++++++

I will for an update in the next 7 days, if there is not update I will ping someone from p5p group to mark this ticket as "Won't Fix".

From itcharlie@gmail.com

Disregard post. This issue still exists but this time around the -e error string doesn't show up and the output file is empty.

++++
PS C​:\Users\cgonzalez\Desktop> .\redirect.pl >foo.txt
PS C​:\Users\cgonzalez\Desktop> cat .\foo.txt
++++