AM_SILENT_RULES has no effect

[Bruno Haible]

Hi,

The automake 1.11 documentation says that to enable silent rules:

     "The developer needs to do either of the following:

        * Add the `silent-rules' option as argument to
          `AM_INIT_AUTOMAKE'.

        * Call the `AM_SILENT_RULES' macro from within the
          `configure.ac' file."

I'm trying to use the second option, because I'm using AM_INIT_AUTOMAKE
in the old 2-arguments form.

After running 'aclocal', 'autoconf', 'autoheader', the 'automake' command
fails:

  $ automake
  gllib/Makefile.am:13: option `silent-rules' must be an argument of 
AM_INIT_AUTOMAKE

To reproduce:

  $ gnulib-tool --create-testdir --dir=ttt stdint
  $ cd ttt
  # Edit gllib/Makefile.am, setting  AUTOMAKE_OPTIONS = 1.11 gnits silent-rules
  # Edit configure.ac, adding an  AM_SILENT_RULES  invocation right after 
AM_INIT_AUTOMAKE
  $ aclocal -I glm4
  $ autoconf
  $ autoheader
  $ automake
  gllib/Makefile.am:13: option `silent-rules' must be an argument of 
AM_INIT_AUTOMAKE
  $ echo $?
  1

Bruno