get rid of "no rule to make target `clean`, Error 2"

This annoyed me for a long time now... Everytime I've seen it I thought:
Ohh noes! Configure failed! But when you carried on reading it stated
that everything is well and that you can now `make`.

1 files changed, 5 insertions, 3 deletions

diff --git a/Configure.pl b/Configure.pl
index e8010f2..82227ff 100644
--- a/Configure.pl
+++ b/Configure.pl
@@ -267,9 +267,11 @@ MAIN: {
     unless ($options{'no-clean'}) {
         no warnings;
         print "Cleaning up ...\n";
-        if (open my $CLEAN, '-|', "$make configclean") {
-            my @slurp = <$CLEAN>;
-            close($CLEAN);
+        for my $p ('', map { "-$_" } @prefixes) {
+            if (open my $CLEAN, '-|', "$make configclean$p") {
+                my @slurp = <$CLEAN>;
+                close($CLEAN);
+            }
         }
     }