What are the missing package i need to config. I am using linux suse pro 9

pbx_dundi.c:45:18: zlib.h: No such file or directory
pbx_dundi.c: In function `update_key':
pbx_dundi.c:1327: warning: implicit declaration of function `crc32'
pbx_dundi.c: In function `dundi_decrypt':
pbx_dundi.c:1383: warning: implicit declaration of function `uncompress'
pbx_dundi.c:1383: error: `Z_OK' undeclared (first use in this function)
pbx_dundi.c:1383: error: (Each undeclared identifier is reported only once
pbx_dundi.c:1383: error: for each function it appears in.)
pbx_dundi.c: In function `dundi_encrypt':
pbx_dundi.c:1408: warning: implicit declaration of function `compress'
pbx_dundi.c:1409: error: `Z_OK' undeclared (first use in this function)
make[1]: *** [pbx_dundi.o] Error 1
make[1]: Leaving directory `/usr/src/asterisk-1.2.0/pbx'
make: *** [subdirs] Error 1

Try zlib-devel

EDIT: Maybe I should write a little more: When make complains about zlib.h missing, it means that the header file of zlib is not installed. Header files (*.h) come with the corresponding -devel package of the library (here: zlib).