cups 1.1.23 on AIX compilation

[fred brits]

Linking libcups.so.2...
ld: 0706-005 Cannot find or open file: libcups.so.2
        ld:open(): A file or directory in the path name does not exist.
collect2: ld returned 255 exit status
make: 1254-004 The error code from the last command is 1.


Stop.
make: 1254-004 The error code from the last command is 1.

Question - Where can I get source or download libcups.so.2 ?