Zabbix 1.6 release.

%configure --with-mysql \
--disable-static \
--with-net-snmp \
--enable-server \
--enable-agent \
--with-ldap \
--with-libcurl \
--with-jabber \
--enable-proxy \
--enable-ipv6

./configure output:
checking for strtod... yes
checking for snprintf... yes
checking for vasprintf... yes
checking for asprintf... yes
checking for vsnprintf... yes
checking for hstrerror... yes
checking for atoll... yes
checking for getopt_long... yes
checking for mysql_config... /usr/bin/mysql_config
checking for main in -lz ... no
configure: error: Not found z library
error: Bad exit status from /usr/src/tmp/rpm-tmp.35655 (%build)

config.log:
configure:9347: checking for main in -lz
configure:9376: gcc -o conftest -pipe -Wall -O2 -march=pentium4 -static conftest.c -lz -lm -lresolv >&5
/usr/bin/ld: cannot find -lz
collect2: ld returned 1 exit status

I think that isn't normal behavior.