pbx_dundi.c:45:18: zlib.h: No such file or directory
pbx_dundi.c: In function `cache_lookup_internal':
pbx_dundi.c:1152: warning: dereferencing type-punned pointer will break strict-aliasing rules
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)
pbx_dundi.c: In function `load_password':
pbx_dundi.c:2047: warning: dereferencing type-punned pointer will break strict-aliasing rules
make[1]: *** [pbx_dundi.o] Error 1
make[1]: Leaving directory `/home/phil/src/asterisk-1.2.9.1/pbx'
make: *** [subdirs] Error 1