Setup watcom

Setup Open Watcom compiler suite

Open Watcom is a project of the open source community to maintain and enhance the Watcom C, C++, and Fortran cross compilers and tools. An Open Source license from Sybase allows free commercial and non-commercial use of Open Watcom. More about Open Watcom's features. Details about Open Watcom's history. Work in progress includes Linux and FreeBSD ports, support for new processors, support for new language features and standards, a C++ STL implementation and more.

Download and install

• Download the packages open-watcom-c-win32-1.7a.exe and open-watcom-f77-win32-1.7a.exe from one of the mirrors listed here: http://www.openwatcom.org/index.php/Download. The open-watcom-f77 is only needed if you are interested in Fortran development.
• Install both packages by double-clicking the exe files. For both packages choose the same directory (without a space in the name), e.g. C:\Development\WATCOM or C:\WATCOM. There is no need to change any other settings, if you want to develop for the Windows platform. At the end of the installations process choose the option, where you set the environment variables yourself. In that way you have more control over the setup and it allows you to have more than one C/C++ compiler installed on your Windows box.

Setup

An IDE is provided by Open Watcom, but to configure and compile plplot it is best to use the Windows CLI. Please follow the instructions in [setup_cli|Setup CLI] to get the Windows Command Line Interface ready for development. We need to set some environment variables in order for Open Watcom to work correctly. Go to Start->System Preferences->System->Advanced->Environment Variables. Add the following environment variables for your user:

set 'WATCOM' to C:\DevZone\WATCOM
set 'EDPATH' to C:\DevZone\WATCOM\EDDAT

where C:\DevZone\WATCOM is the path to your Open Watcom installation. This information is also provided in the file C:\DevZone\WATCOM\CHANGES.ENV. Than open your favorite text editor and enter the following CLI commands

@echo off
rem setup Open Watcom compiler
set WATCOM=C:\DevZone\WATCOM
set PATH=%WATCOM%\BINNT;%WATCOM%\BINW;%PATH%
set INCLUDE=%WATCOM%\H;%WATCOM%\H\NT
rem setup PLplot library
set PLPLOTDIR=%USER_ROOTDIR%\PLDev\plplot\buildwatcom
echo Set PLPLOT working directory to %PLPLOTDIR%.
set PLPLOT_LIB=%PLPLOTDIR%\..\data
set PATH=%PLPLOTDIR%\dll;%PATH%

Links

• Homepage: http://www.openwatcom.org
• Download: http://www.openwatcom.org/index.php/Download