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-rw-r--r--Src/mkmakemod.sh8
1 files changed, 7 insertions, 1 deletions
diff --git a/Src/mkmakemod.sh b/Src/mkmakemod.sh
index 98b9199df..aa5f3c0ec 100644
--- a/Src/mkmakemod.sh
+++ b/Src/mkmakemod.sh
@@ -132,7 +132,13 @@ if $first_stage; then
 	    $the_subdir/$lastsub/*) ;;
 	    $the_subdir/*/*)
 		lastsub=`echo $modfile | sed 's,^'$the_subdir'/,,;s,/[^/]*$,,'`
-		all_subdirs="$all_subdirs $lastsub"
+		case "$all_subdirs" in
+		    *" $lastsub"* ) ;;
+		    *" $lastsub "* ) ;;
+		    * )
+			all_subdirs="$all_subdirs $lastsub"
+		    ;;
+		esac
 		;;
 	    $the_subdir/*)
 		mddname=`echo $modfile | sed 's,^.*/,,;s,\.mdd$,,'`