my $output = WriteMakefile(%opts);
if (!exists $output->{EXTRALIBS} or
	($output->{EXTRALIBS} !~ /\-lpq/ and $output->{EXTRALIBS} !~ /libpq/)) {
	my $makefile = exists $output->{MAKEFILE}
		? "\nRemoving ($output->{MAKEFILE})\n" : '';
	warn qq{
==========================================================
WARNING! No libpq libraries were detected!
You need to install the postgresql-libs package for your system,
or set the POSTGRES_LIB environment variable to the correct place.
$makefile
===========================================================
};
	## Do not let make proceed
	unlink $output->{MAKEFILE} if $makefile;
	exit 1;
}
exit 0;

##</code><code>##

	 LIBS           => ["-L$POSTGRES_LIB -lpq -lm"],
...
elsif ($os =~ /Win32/) {
	my $msdir = $POSTGRES_LIB;
	$msdir =~ s{"$}{/ms"};
	$opts{LIBS}[0] .= " -L$msdir -lsecur32";