Re^7: STDERR going to string

Am I missing something?

$ perl -le " print for map { fileno $_ }  \*STDIN, \*STDOUT, \*STDERR 
+"
0
1
2
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There is nothing you can do to change the fileno of STDIN/STDOUT/STDERR on a c-level on win32, they're always 0 1 2, so any c code printing on STDERR is printing on 2, always

To capture STDERR you have to launch a process, or

Patch XS module to use perl functions for printing to stderr (perlclib), so that when you redirect STDERR/STDOUT (like using IO::NestedCapture), it notices

Comment on Re^7: STDERR going to string Download Code

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Re^8: STDERR going to string by philkime (Beadle) on Oct 11, 2011 at 13:19 UTC
Ok, thanks. I looked into patching but the STDERR stuff comes from a library which the XS uses, not the XS itself. To perlIO that would probably be too tricky (for me, anyway). I wonder if I could get round it with a simple fork() around the sub calls ...	[reply]