Output from AC_DEFINE_UNQUOTED not appearing in config.h

[Robert Norris]

My configure.in has the following:

---
dnl storage drivers
want_storage='db'
AC_MSG_CHECKING(which storage drivers to build)
AC_ARG_ENABLE(storage, AC_HELP_STRING(--enable-storage=drivers, [storage 
drivers to build (default: db)]),
            [ if test "x-$enableval" = "x-no" ; then
                  want_storage=''
              elif test "x-$enableval" != "x-yes" ; then
                  want_storage=$enableval
              fi ])
AC_MSG_RESULT($want_storage)

for opt in $want_storage ; do
    eval "j2_want_storage_$opt=yes"
    def="WANT_STORAGE_`echo $opt | tr 'a-z' 'A-Z'`"
    AC_DEFINE_UNQUOTED($def)
done
---

However, any preprocessor symbols defined here do not appear in config.h
(contrary to what the documentation on AC_DEFINE_UNQUOTED says).

(They do appear in confdefs.h, but of course this file is deleted when
configure completes).

Can anyone suggest a fix or workaround for this? My thought was that I
could do this instead:

    CFLAGS="$CFLAGS -D$def"

That feels a little brute-force though - surely there's a better way?

Thanks,
Rob.

-- 
Robert Norris                                       GPG: 1024D/FC18E6C2
Email+Jabber: address@hidden                Web: http://cataclysm.cx/

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