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--- a/src/filters/rcldoc
+++ b/src/filters/rcldoc
@@ -28,6 +28,7 @@
 #decoder="wvWare -1 -c UTF-8"
 
 
+
 #RECFILTCOMMONCODE
 ##############################################################################
 # !! Leave the previous line unmodified!! Code imported from the
@@ -51,10 +52,10 @@
     cmd=$1
     case $cmd in
     */*)
-	if test -x $cmd ; then return 0; else return 1; fi ;;
+	if test -x $cmd -a ! -d $cmd ; then return 0; else return 1; fi ;;
     *)
       oldifs=$IFS; IFS=":"; set -- $PATH; IFS=$oldifs
-      for d in $*;do test -x $d/$cmd && return 0;done
+      for d in $*;do test -x $d/$cmd -a ! -d $d/$cmd && return 0;done
       return 1 ;;
     esac
 }