/$config->{LIBS} = backtick(/i
	my $sdkroot = exists($ENV{SDKROOT}) ? $ENV{SDKROOT} : '';
.
/$config->{LIBS} = backtick(/a
	$config->{LIBS} =~ s/-L/-L$sdkroot/g;
.
/$config->{INC}  = backtick(/a
	$config->{INC}  =~ s/-I/-I$sdkroot/g;
.
w