So you have to download a separate .sfs file and then use that to hoist pre-built gcc and other build tool such as Python into FatDog64.
The sfs file that contains gcc for Puppy Linux (which FatDog64 is a derivative of), is known as the devx file. The specific file you need for FatDog64 621 is http://distro.ibiblio.org/fatdog/sfs/600/fd64-devx_620.sfs, but you might have a newer or older version of FatDog64 so see here if there is one for your version, otherwise pick the closest match.
Once you have the devx sfs file, you need to put it on your hard drive and then tell FatDog64 to load it into the filesystem at startup, so that the gcc tools will all then be on the path and you can build files like normal.
1) In FatDog64 start menu, go to the Control Panel option.
2) The control panel will appear.
3) Click the system tab.
4) Double click the System Sfs Loader
5) Select the "devx sfs" file that you downloaded. Now this might be a bit tricky as by default it might not appear in the listing, so navigate to the root directory of where you installed FatDog64 and then put all your sfs files into that folder. Next time FatDog64 starts it will then know the correct place.
6) Be sure to tick the checkbox that specifies to load at next startup.
7) Then click the load button.
This image shows the System SFS loader, with some .sfs files in the right panel. Sfs files in the left panel are available and the ones on the right are the loaded .sfs files. What these actually are is compressed file systems(SFS = squash file system), and the contents of the file systems are mapped into the unix file system so that it seems like the programs are there, in this case Gcc, but if you look in this picture I also have the 32 bit compatibility layer and the Wine installed via .sfs files.
Click image to enlarge
Now you will have gcc and make installed on your system and can then start doing things like building c++ programs or adding in an IDE like Codeblocks for example. See this topic for information on getting Codeblocks running or download a pre-built Codeblocks folder for FatDog64.
|This image shows FatDog64 running gcc in a console, and also loaded via means of sfs is Wine running a Windows application.|