tokuhirom/Linux-Socket-Accept4 — pull request #6 by syohex (2014-11-15 14:05:25+00:00)
Title: Add SVt_RV case for older Perl(< 5.12)

On newer Perl, SVt_RV equals to SVt_IV. While on older Perl,
SVt_RV does not equal to SVt_IV. So default case is executed
if first argument is reference on older Perl.