ZLIB version 1.3.2 for OS/400 installation instructions

1) Download and unpack the zlib tarball to some IFS directory.

(i.e.: /path/to/the/zlib/ifs/source/directory)

If the installed IFS command supports gzip format, this is straightforward,

else you have to unpack first to some directory on a system supporting it,

then move the whole directory to the IFS via the network (via SMB or FTP).

2) Edit the configuration parameters in the compilation script.

EDTF STMF('/path/to/the/zlib/ifs/source/directory/os400/make.sh')

Tune the parameters according to your needs if not matching the defaults.

Save the file and exit after edition.

3) Enter qshell, then work in the zlib OS/400 specific directory.

QSH

cd /path/to/the/zlib/ifs/source/directory/os400

4) Compile and install

sh make.sh

The script will:

- create the libraries, objects and IFS directories for the zlib environment,

- compile all modules,

- create a service program,

- create a static and a dynamic binding directory,

- install header files for C/C++ and for ILE/RPG, both for compilation in

DB2 and IFS environments.

That's all.

Notes: For OS/400 ILE RPG programmers, a /copy member defining the ZLIB

API prototypes for ILE RPG can be found in ZLIB/H(ZLIB.INC).

In the ILE environment, the same definitions are available from

file zlib.inc located in the same IFS include directory as the

C/C++ header files.

Please read comments in this member for more information.

Remember that most foreign textual data are ASCII coded: this

implementation does not handle conversion from/to ASCII, so

text data code conversions must be done explicitly.

Mainly for the reason above, always open zipped files in binary mode.