--- libtool-2.4.3/m4/libtool.m4.orig	2003-04-14 23:58:23.000000000 +0200
+++ libtool-2.4.3/m4/libtool.m4	2003-04-20 12:22:06.000000000 +0200
@@ -1103,6 +1103,21 @@
   else
     sys_lib_search_path_spec=`echo "$sys_lib_search_path_spec" | $SED  -e "s/$PATH_SEPARATOR/ /g"`
   fi
+  # sanitize
+  new_sys_lib_search_path_spec=
+  for d in $sys_lib_search_path_spec ; do
+    # check if exists
+    if test -d $d -a -x $d ; then
+      # normalize
+      new_d=$(cd $d ; pwd)
+      # uniq
+      if ! echo "$new_sys_lib_search_path_spec" | grep -q -F -e " $new_d " ; then
+        new_sys_lib_search_path_spec="$new_sys_lib_search_path_spec $new_d "
+      fi
+    fi
+  done
+  # compress spaces
+  sys_lib_search_path_spec=`echo "$new_sys_lib_search_path_spec" | $SED -e 's/^ *//g;s/ \+/ /g;s/ $//g'`
 else
   sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
 fi