The ZZIPlib provides read access on ZIP-archives and unpacked data. It features an additional simplified API following the standard Posix API for file access
I have done a quick codesearch through public (opensource) repositories and it seems that no one has ever used the *32 functions explicitly. So I decided to cut that include out of <zzip/lib.h>.
In zzip\zzip32.h:
In zzip\lib.h
These header files include each other. It is not a good smell.