+fi
+if test "$x_rendezvous_on" = "howl"; then
+ for dir in /usr/local/include /usr/local/include/howl* \
+ /usr/include /usr/include/howl*; do
+ test -d "$dir" || continue
+ AC_MSG_CHECKING([for Howl headers in $dir])
+ if test -f "$dir/rendezvous/rendezvous.h"; then
+ if test "$dir" != "/usr/local/include" -a \
+ "$dir" != "/usr/include"; then
+ CFLAGS="-I$dir $CFLAGS"
+ CPPFLAGS="-I$dir $CPPFLAGS"
+ fi
+ AC_MSG_RESULT(yes)
+ break
+ else
+ AC_MSG_RESULT(no)
+ fi
+ done
+ AC_CHECK_HEADERS([rendezvous/rendezvous.h],, \
+ AC_MSG_ERROR([required C header missing!]))
+ AC_DEFINE(RENDEZVOUS, 1)
+fi
+
+x_identauth_on=no
+AC_ARG_WITH(ident,
+ [ --with-ident enable "IDENT" ("AUTH") protocol support],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(ident, ident_id)
+ AC_CHECK_FUNCS(ident_id, x_identauth_on=yes,
+ AC_MSG_ERROR([Can't enable IDENT support!])
+ )
+ fi
+ ]
+)
+if test "$x_identauth_on" = "yes"; then
+ AC_DEFINE(IDENTAUTH, 1)
+ AC_CHECK_HEADERS(ident.h,,AC_MSG_ERROR([required C header missing!]))