Does anybody know a clever way to create single object file from multiple .for (source) files (other than creating (stacking) one large file from all of the .for files)??
Usually object libraries are used, where the separate object files are created and stored in the single library file. Anyhow you can also do something like:
df /compile /object:single.obj part1.for part2.for
to combine into one object file.
If you're in the DevStudio environment, what I usually suggest is creating a source file which looks like this:
and then create an alternate project which has just this file in it. When you build this, you are concatenating the sources implicitly.