--- Params-Util-1.07/Makefile.PL.orig 2019-09-30 15:38:01.640045900 +0300 +++ Params-Util-1.07/Makefile.PL 2012-03-11 04:39:46.000000000 +0400 @@ -14,7 +14,7 @@ unless ( defined $make_xs ) { $make_xs = can_xs(); } -if ( $^O eq 'cygwin' and $make_xs == 1 and not /^-xs/ ) { +if ( ($^O eq 'cygwin' or $^O eq 'msys') and $make_xs == 1 and not /^-xs/ ) { # Cygwin goes bonkers breaking `` if using Params::Util XS version # for no apparent reason. $make_xs = 0;