diff -uNr rootcerts/mkcerts.pl rootcertsp/mkcerts.pl
--- rootcerts/mkcerts.pl	2001-04-07 23:30:26.000000000 +0200
+++ rootcertsp/mkcerts.pl	2017-08-22 11:06:27.301556528 +0300
@@ -67,7 +67,7 @@
     # Ok, now standardize the filename by grabbing the subject, and going
     # from there.
 
-    open (D, "openssl x509 -subject <$filename |") || die "$!\n";
+    open (D, "openssl x509 -subject -nameopt compat <$filename |") || die "$!\n";
 
     $subject="";
 
@@ -82,7 +82,7 @@
 
     my %var;
 
-    $subject =~ s/\/([a-zA-Z]*=)/\n$1/g;
+    $subject =~ s/\s?([a-zA-Z]*=)/\n$1/g;
 
     grep { $var{$1}=$2 if /^([A-Z]*)=(.*)/; } split (/\n/, $subject);
 
@@ -95,6 +95,7 @@
     # Put everything to lower case.  Replace non-alnum with dashes.  Collapse
     # multiple dashes.
 
+    $n =~ s/,//g;
     $n =~ tr/[A-Z]/[a-z]/;
     $n =~ s/[^0-9a-z]/-/g;
     $n =~ s/--*/-/g;