util/fipslink.pl: allow for single-step link.

print "Integrity check OK\n";

if (grep /fips_premain\.obj/,@ARGV) {

	print "$fips_cc $fips_cc_args $fips_libdir/fips_premain.c\n";

	system "$fips_cc $fips_cc_args $fips_libdir/fips_premain.c";

	die "First stage Compile failure" if $? != 0;

} elsif (!defined($ENV{FIPS_SIG})) {

	die "no fips_premain.obj";

}

print "$fips_link @ARGV\n";

system "$fips_link @ARGV";

die "First stage Link failure" if $? != 0;

if (defined($ENV{FIPS_SIG})) {

	system "$ENV{FIPS_SIG} $fips_target\n"

	die "$ENV{FIPS_SIG} $fips_target failed" if $? != 0;

	exit;

}

print "$fips_premain_dso $fips_target\n";

system("$fips_premain_dso $fips_target >$fips_target.sha1");