[stunnel-users] build problem with 4.28 on SLES9 (SSL again)

Hi, there is a build problem with 4.28 on a SLES 9. May be similar to the no_ticket problem.

Here is the interesting part of build log:

options.c: In function `parse_ssl_option': options.c:1714: error: `SSL_OP_NO_QUERY_MTU' undeclared (first use in this function) options.c:1714: error: (Each undeclared identifier is reported only once options.c:1714: error: for each function it appears in.) options.c:1715: error: `SSL_OP_COOKIE_EXCHANGE' undeclared (first use in this function) options.c:1724: error: `SSL_OP_SINGLE_ECDH_USE' undeclared (first use in this function) make[1]: *** [options.o] Error 1 make[1]: Leaving directory `/usr/src/packages/BUILD/stunnel-4.28/src'

any hints?