This isn't entirely necessary if you do everything right from the

start, but can save you some trouble.  Just ignore "shared" if it
comes up among the given options, at least for now...

util/mk1mf.pl

@@ -883,6 +883,7 @@ sub read_options
 	elsif (/^profile$/)	{ $profile=1; }
 	elsif (/^shlib$/)	{ $shlib=1; }
 	elsif (/^dll$/)		{ $shlib=1; }
+	elsif (/^shared$/)	{ } # We just need to ignore it for now...
 	elsif (/^([^=]*)=(.*)$/){ $VARS{$1}=$2; }
 	elsif (/^-[lL].*$/)	{ $l_flags.="$_ "; }
 	elsif ((!/^-help/) && (!/^-h/) && (!/^-\?/) && /^-.*$/)