diff --git a/m4/dune_all.m4 b/m4/dune_all.m4
index 2a7b6759bc0afc596c7c0213db381e0499c0ae28..fb69c64fa7b18d41e9f84a474b10f474eb9a4ce4 100644
--- a/m4/dune_all.m4
+++ b/m4/dune_all.m4
@@ -92,15 +92,20 @@ AC_DEFUN([DUNE_SUMMARY_ALL],[
 
 ])
 
-AC_DEFUN([DUNE_CHECK_ALL_M],[
+AC_DEFUN([DUNE_CHECK_ALL_WARNING],
         [echo
-        echo "    The build system of your module has called the deprecated method DUNE_CHECK_ALL_M."
-        echo "    Please replace that call (in configure.ac) by a call to DUNE_CHECK_ALL.  If you"
-        echo "    need the dune -> . symlink add DUNE_SYMLINK to your configure.ac."
+        echo "    The build system of your module has called the deprecated method [DUNE_CHECK_ALL_M]."
+        echo "    Please replace that call (in configure.ac) by a call to [DUNE_CHECK_ALL].  If you"
+        echo "    need the dune -> . symlink add [DUNE_SYMLINK] to your configure.ac."
         echo "    Press 'enter' to continue!"
         echo
-        read -u 7]
-  AC_REQUIRE([DUNE_SYMLINK])
+        read -u AS_ORIGINAL_STDIN_FD
+]
+)
+
+AC_DEFUN([DUNE_CHECK_ALL_M],[
+  AC_REQUIRE([DUNE_CHECK_ALL_WARNING])
+dnl  AC_REQUIRE([DUNE_SYMLINK])
   AC_REQUIRE([DUNE_CHECK_ALL])
   AC_REQUIRE([DUNE_AUTOBUILD_FLAGS])
 ])