CXX=g++ isn't necessary either; make already knows about $(CXX) and how to link C++ programs. Also, I think you wanted .o, not o.
And compared to that Makefile, the redo scripts you list don't seem simpler at all. I've seen reasonably compelling arguments for redo, but that wasn't one.
> CXX=g++ isn't necessary either; make already knows about $(CXX) and how to link C++ programs.
You're right, of course.
> Also, I think you wanted .o, not o.
I would, yes, but I copied the Makefile ;)
Should have been clearer; I meant that redo is simpler (and more reliable) than make.
For simple projects, redo scripts are a bit longer. However, as the projects grow, the redo scripts reach an asymptote whereas Makefiles don't.
The only way to reduce the growth in make is to add functions and implicit rules
which get ugly real fast.
And compared to that Makefile, the redo scripts you list don't seem simpler at all. I've seen reasonably compelling arguments for redo, but that wasn't one.