USDA ARS

Structural Changes in Version 2

Portability

All IPW C code now meets the ANSI/ISO Standard. IPW will install and run on any Unix system that complies with X-Open's Single Unix Specification, and an ANSI/ISO Standard C compiler. (see design portability)

Configuration and Installation

GNU's autoconf was used to generate a configure script. This simplifies the configuration process, making it much easier to install IPW on new systems that conform to the system requirements.

The Make Utility

The original IPW command ipwmake has been eliminated. IPW now requires GNU's version of "make", which provides a more functional make utility that can be standardized on any conforming Unix platform (see System Requirements).

Documentation and Manual Pages

All documentation is now available only in HTML, for viewing through a web browser. The original IPW command ipwman has been eliminated. Manual pages have been separated from the source code, and are produced automatically by gmake in both HTML and Unix man page formats. Either a web browser is used to view manual pages (see Users Guide or Programmers Guide), or, if the proper $MANPATH is set, the Unix man command can be used to view standard on-line manual pages.


IPW documentation / Last revised 29 May 2009 / IPW web site