imprime tk_libs correctement

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@3034 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

configure

@@ -923,9 +923,9 @@ if test $has_tk = true; then
 fi
 
 if test $has_tk = true; then
+  tk_libs=`echo $tk_libs | sed -e 's/-l/-cclib &/g' -e 's/-L/-ccopt &/g' `
   echo "TK_DEFS=$tk_defs" >> Makefile
-  echo "TK_LINK=$tk_libs" \
-    | sed -e 's/-l/-cclib &/g' -e 's/-L/-ccopt &/g' >> Makefile
+  echo "TK_LINK=$tk_libs" >> Makefile
   otherlibraries="$otherlibraries labltk"
 else
   echo "Configuration failed, LablTk will not be built."