Do the tee yourself in Perl... that'd be a simple operation. Something like: 
open my $make, "make -f params |" or die;
open my $logger, ">>build.log" or die;
while (<$make>) { print $logger $_; print }
close $make; # to get $?
my $exit = $?;
close $logger;

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-- Randal L. Schwartz, Perl hacker

In reply to Re: Capture Exit Code Using Pipe & Tee by merlyn
in thread Capture Exit Code Using Pipe & Tee by Anonymous Monk

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