The make is invoked via open, which returns the process ID of the spawned command. merlyn's code should work alright, with a slight modification 
open my $make, "make -f params 2>&1 |" or die;

[download]
to get make's STDERR into the spawning shell's STDOUT. Do you get any errors reported?

--shmem 

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re^3: Capture Exit Code Using Pipe & Tee by shmem
in thread Capture Exit Code Using Pipe & Tee by Anonymous Monk

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