Here's the output of your latest script: 

start: $VAR1 = undef;

after tie: $VAR1 = undef;

Assign to key CHLD at perlmonkIII.pl line 42
after set handler: $VAR1 = sub { "DUMMY" };

after require: $VAR1 = sub { "DUMMY" };

after import: $VAR1 = sub { "DUMMY" };

after creating instance: $VAR1 = sub { "DUMMY" };

after resolving localhost: $VAR1 = sub { "DUMMY" };

after resolving junk: $VAR1 = sub { "DUMMY" };

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The sources I posted in the first post were the entirety of the code that led to the oddity documented there. Could the tie itself be changing the behaviour seen there?

In reply to Re^6: SIG{CHLD} altered by require statement on Perl 5.12.1 by sdingare
in thread SIG{CHLD} altered by require statement on Perl 5.12.1 by sdingare

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