|  | ZLIB version 1.2.13 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. |