LibPNG_JFP, programming, image (de)compression library using the Portable Network Graphics (PNG) standard

LibPNG V1.2.8
http://www.vsm.com.au/ftp/jfp/kits/
© Tous droits réservés 2003 Jean-François PIÉRONNE


LibJPEG is a image de/compression library using the Portable Network Graphics (PNG) standard 
used by several software packages, including Python.

By default, the installation procedure installs this library package in the SYS$COMMON:[LIBPNG]
directory. To install it in another directory, dev:[dir], use the /DESTINATION parameter of the
PRODUCT command. In this case, the library package will be installed in the dev:[dir.LIBPNG] directory.

Installation

   1. Make the directory which holds the ZIP file your default directory
   2. Extract the PCSI kit from the ZIP archive.

$ UNZIP "-V" LIBPNG-V0102-8-1.ZIP

   3. Install the library package to your chosen destination.

$ PRODUCT INSTALL libpng  (default)

  or ...

$ PRODUCT INSTALL libpng /DESTINATION=dev:[dir]

   4. Finally, run the DCL procedure STARTUP.COM to define the necessary logicals.

(You might want to add the relevant line to your SYSTARTUP_VMS.COM file.)

$ @SYS$COMMON:[LIBPNG]STARTUP  (default)

or ...

$ @dev:[dir.LIBPNG]STARTUP


