OS/2 Build Instructions

The OS/2 port is not yet completed. These instructions are here for those who wish to help out.

Prerequisites on OS/2

• OS/2 running on Intel hardware... ;-)
• GCC 3.3.5 CSD1:
  ​ftp://ftp.netlabs.org/pub/gcc/gcc-3.3.5-csd1.zip
• SDL:
  ​ftp://ftp.netlabs.org/pub/sdl/sdl-1.2.10-bin-20060602.zip
  Unpack this into tools/os2.x86/sdl/v1.2.10-20060602/. If you get compiler errors in the SDL headers, a small fix needs to be applied. TODO: link to patch.
• Later: Latest Qt3:
  ​ftp://ftp.netlabs.org/pub/qt3/
  Unpack this into tools/os2.x86/qt/v3.x.y/.
• ...

Building VirtualBox

1. Load the gcc environment (gccenv.cmd).
2. Change to the root directory of the sources and execute

   kBuild\envos2.cmd
   

3. To build type

   kmk
   

   The default is to a release build, should you wish to do a debug or profile build add BUILD_TYPE=debug or BUILD_TYPE=profile as argument to kmk or set it as an environment variable.

Running VirtualBox

Since this is work in progress there are just testcases and a not very useful VBoxBFE to run at this point. If you like to see the VBoxBFE SDL window and immediatly hit an assertion, do this:

1. Change directory to out\os2.x86\release\bin
2. Add this directory to the BEGINLIBPATH variable (full path, remember).
3. Set the env.var.: VBOX_SUPLIB_FAKE=fake
4. Execute .\VBoxBFE.exe -m 64. You should now get a brief glimpse of a SDL window and then a fatal assertion saying it doesn't know how to load VMMR0.r0.