+dnl Check for Perl and POD.
+AC_CHECK_PROG([PERL],[perl],[perl],[no])
+AC_CHECK_PROG([POD2MAN],[pod2man],[pod2man],[no])
+test "x$POD2MAN" = "xno" &&
+ AC_MSG_ERROR([pod2man must be installed])
+AC_CHECK_PROG([POD2TEXT],[pod2text],[pod2text],[no])
+test "x$POD2TEXT" = "xno" &&
+ AC_MSG_ERROR([pod2text must be installed])
+