Latest update.

crypto/sha/asm/sha512-s390x.pl

@@ -43,7 +43,10 @@
 # remains z/Architecture specific. On z990 SHA256 was measured to
 # perform 2.4x and SHA512 - 13x better than code generated by gcc 4.3.
 
-$flavour = shift;
+# $output is the last argument if it looks like a file (it has an extension)
+# $flavour is the first argument if it doesn't look like a file
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
 
 if ($flavour =~ /3[12]/) {
 	$SIZE_T=4;
@@ -71,7 +74,6 @@ $tbl="%r13";
 $T1="%r14";
 $sp="%r15";
 
-while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {}
 open STDOUT,">$output";
 
 if ($output =~ /512/) {