EL_OPTIMIZATIONS         -fomit-frame-pointer  -fPIC   -c -o pbx_dundi.o pbx_dundi.c
pbx_dundi.c:45:18: error: 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 `/usr/src/asterisk-1.2.7.1/pbx'
make: *** [subdirs] Error 1