cannot compile on solari, vpopmail v4.10.29

[Jeffrey Iskandar Ahmad]

# make
make  all-recursive
Making all in cdb
gcc  -g -O2 -Wall  -o vchkpw  vchkpw.o
libvpopmail.a -L/usr/lib/mysql -R/usr/local/lib -lmysqlclient -lz -lsocket -
lnsl -lcrypt -lm -R/usr/lib/mysql
ld: fatal: library -lz: not found
ld: fatal: File processing errors. No output written to vchkpw

how to set library -lz

Thanks

Jeffrey Iskandar Ahmad
System Engineer
Technology Division
TIME dotNet