[Serusers] mysql.so not compiled

Hi I have this problem trying to compile ser with mysql support: make all . . /usr/lib/gcc-lib/i586-suse-linux/3.3.1/../../../../i586-suse-linux/bin/ld: cannot find -lz collect2: ld returned 1 exit status make[1]: *** [mysql.so] Error 1 make[1]: Leaving directory `/var/root/ser-0.8.12/modules/mysql'

ERROR: module modules/mysql/mysql.so not compiled

...if I try to install mysql.so from rpm "ser-mysql-0.8.12-0.i386.rpm" I have this error: ~# rpm -i ser-mysql-0.8.12-0.i386.rpm error: Failed dependencies: ser = 0.8.12 is needed by ser-mysql-0.8.12-0

any idea? Rafael

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