Portable Object Compiler

The Portable Object Compiler consists of a set of Objective-C class libraries and a precompiler (translator) that generates plain C code.

On Linux or UNIX systems, you can install the software as follows :

Obtain a copy of 'gcc' or use the C compiler 'cc' of your specific system (depending on the system you use, the native 'cc' may be better or worse than gcc)
Compile flex-2.5.4 if you don't have flex; don't use lex
Compile BSD byacc 1.9.1 (and install as 'byacc', bison could be used as alternative, but I recommend byacc)
Install objc-bootstrap-3.2.12.tar.gz (install this package before you install objc-3.2.13!)
Install objc-3.2.13.tar.gz.
Optionally, for the class browser, install cursel-0.2.4.tar.gz.
X11Blocks-0.0.1.tar.gz is a library (under development) for X11 development based on the Objective-C blocks concept.

The package contains the documentation in HTML format. The manual is also available here, and there's a note on Objective-C blocks. The text Objective-C for Unix is also a source of information on the architecture of the compiler.

Instead of compiling those packages yourself, you may want to download RPM packages from Sourcesoft.

More Objective-C packages can be found at Metalab : http://metalab.unc.edu/pub/Linux/devel/lang/objc/.

CheezMUD is not in the /devel/lang/objc directory, but rather in http://metalab.unc.edu/pub/Linux/games/muds/. Another package is SDOC

The Windows version is at Simtel : ftp://ftp.simtel.net/pub/simtelnet/win95/prog/.

The latest precompiled package for Sybase/WATCOM is oc319w. zip and the latest precompiled package for Microsoft Visual C++ 6.0 is oc319v.zip. On Windows, you can use this yaccflex.zip port to compile the compiler grammar.

There is also an OS/2 port (for VisualAge) at ftp://ftp.cdrom.com/pub/os2/lang/.

See ftp://sunsite.cnlab-switch.ch/software/platform/macos/src/HTML/MW_C.html or ftp://sunsite.cnlab-switch.ch/software/platform/macos/src/mw_c/ for the Macintosh MPW port.

UTC Bar Chart is a package to generate EPS bar charts with on the horizontal axis time expressed in seconds (UTC, i.e. time expressed in seconds since the Epoch January 1,1970).

Richtext is an X11 / Motif / Lesstif text editor (and RTF file previewer) written in Objective-C and available at http://metalab.unc.edu/pub/Linux/apps/editors/X/.

Here's a screenshot of the Richtext previewer/editor

SortingInAction is an X11 app available at http://metalab.unc.edu/pub/Linux/X11/demos/.

See http://www.rat.se/homepages/ronny/POC.html for a Sybase/Powersoft WATCOM port (for Windows).

It's possible to configure the WATCOM IDE to compile .m files with the POC. Here are some WATCOM IDE config files to do that.