VisualAge C++
Description
Full developer's package with a WPS integrated "Workframe", a "Visual Builder" for visual programming of visual and non-visual parts, compiler/linker for C and C++, a Debugger, Build and Make tools and many extras. This used to be the "standard compiler" for OS/2. If all available fixpaks are applied (which is done by applying the cumulative fixpak 8) this package can be considered the most reliable IBM "official developer's tool package" for OS/2 (the latest being version 4.0). A disadvantage is the not fully supported C++ standard (which came later than this compiler). However, you still can use templates, but no namespaces. Code portable between OS/2 and AIX.
Source and References
Since IBM doesn't sell the package any more you need to get a second hand license.
Get Fixpak 8 from IBM: [1]
License
IBM Abandonware