Install the zlib-devel package if you want to develop applications that
will use the zlib library.
drwxr-xr-x 2 root root 0 May 21 20:14 /usr/doc/zlib-devel-1.2.5 -rw-r--r-- 1 root root 62259 Apr 20 00:13 /usr/doc/zlib-devel-1.2.5/ChangeLog -rw-r--r-- 1 root root 5200 Apr 20 00:12 /usr/doc/zlib-devel-1.2.5/README -rw-r--r-- 1 root root 13357 May 21 20:14 /usr/include/zconf.h -rw-r--r-- 1 root root 79564 May 21 20:14 /usr/include/zlib.h -rw-r--r-- 1 root root 7153 May 21 20:14 /usr/include/zutil.h -rw-r--r-- 1 root root 96698 May 21 20:14 /usr/lib/libz.a -rw-r--r-- 1 root root 97112 May 21 20:14 /usr/lib/m5475/libz.a -rw-r--r-- 1 root root 95758 May 21 20:14 /usr/lib/m68020-60/libz.a -rw-r--r-- 1 root root 1974 May 21 20:14 /usr/share/man/man3/zlib.3.gz