pam-mysql make时出错

zeroIIx

pam_mysql.c:1180: warning: dereferencing type-punned pointer will break strict-a
liasing rules
pam_mysql.c: In function `pam_sm_open_session':
pam_mysql.c:1201: warning: traditional C rejects ISO C style function definition
s
pam_mysql.c: In function `pam_sm_close_session':
pam_mysql.c:1211: warning: traditional C rejects ISO C style function definition
s
gcc -shared -Xlinker -x -L/usr/lib/mysql -lz -o pam_mysql.so dynamic/pam_mysql.o
  -lmysqlclient -lcrypt
/usr/bin/ld: cannot find -lz
collect2: ld returned 1 exit status
make: *** [pam_mysql.so] Error 1
是什么问题, fedora没有这个rpm包是.tar.gz解出来make的
make的时候出现这个问题