+AC_MSG_CHECKING(how to send mail)
+AC_ARG_WITH(mail,
+[ --with-mail=name How to send mail; one of:
+ sendmail (the default)],
+[],
+[withval="sendmail"])
+if test -r "${srcdir}/src/mail-${withval}.c" ; then
+ AC_MSG_RESULT([$withval])
+ MODULE_OBJS="$MODULE_OBJS mail-${withval}.\$(OBJEXT)"
+else
+ AC_MSG_ERROR([Unknown mail method $withval])
+fi
+