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#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = qw(. ../lib);
}
require Config; import Config;
require "test.pl";
plan(tests => 1);
SKIP: {
skip("Alarm not supported", 1) unless exists $Config{'d_alarm'};
$SIG{ALRM} = sub {
# We could call anything that modifies $! here, but
# this way we can be sure that it isn't the same
# errno as interrupted sleep() would return, and are
# able to check it thereafter.
$! = -1;
};
alarm 1;
sleep 2;
# Interrupted sleeps sets errno to EAGAIN, but signal
# that # hits after it (if safe signal handling is enabled)
# causes a routing that modifies $! to be run afterwards
isnt($! + 0, -1, 'Signal does not modify $!');
}
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