apache22 problem installing on a freebsd 7.2 system

[Farcas Felix]

Hello

I try to instal from ports apache 22. But after doing make install clean I
got the following error:

checking whether to enable mod_auth_digest... checking dependencies
You need APR random support to use mod_auth_digest.
Look at APR configure options --with-egd and --with-devrandom.
checking whether to enable mod_auth_digest... configure: error:
mod_auth_digest has been requested but can not be built due to
prerequisite failures
===>  Script "configure" failed unexpectedly.

My installed packages till now are:
apr-gdbm-db42-1.4.2.1.3.9_1     joe-3.7,1
aspell-0.60.6_2                 libiconv-1.11_1
autoconf-2.62                   libtool-2.2.6b
autoconf-wrapper-20071109       m4-1.4.14,1
automake-1.9.6_3                mc-light-4.1.40.p9_7
automake-wrapper-20071109       mysql-client-5.5.4
bash-3.2.48_1                   mysql-server-5.5.4
db42-4.2.52_5                   openldap-client-2.4.22
expat-2.0.1_1                   p5-gettext-1.05_2
gawk-3.1.7                      pcre-8.02
gdbm-1.8.3_3                    perl-5.10.1_1
gettext-0.17_1                  pkg-config-0.23_1
help2man-1.38.2                 python26-2.6.5

Would you pleas ebe so kind and give me any sugestion?

Thank you
Felix