>> The idea is that you should link the front and back ends, to prevent out-of-process GPL runarounds.

Valid points, but also the reason people wanting to create a more modular compiler created LLVM under a different license - the ultimate GPL runaround. OTOH now we have two big and useful compilers!

When gcc was built most compilers were proprietary. Stallman wanted a free compiler and to keep it free. The GPL license is more restrictive, but it's philosophy is clear. At the end of the day the code's writer can choose if and how people are allowed to use it. You don't have to use it, you can use something else or build you own. And maybe, just maybe Linux is thriving while Windows is dying because in the Linux ecosystem everybody works together and shares, while in Windows everybody helps together paying for Satya Nadellas next yacht.

That sounds like Stallman wants proprietary OSS ;)

If you're going to make it hard for anyone anywhere to integrate with your open source tooling for fear of commercial projects abusing them and not ever sharing their changes, why even use the GPL license?

Good lord Stallman is such a zealot and hypocrite. It's not open vs. closed it's mine vs. yours and he's openly declaring that he's nerfing software in order to prevent people from using it in a way he doesn't like. And refusing to talk about it in public because normal people hate that shit "misunderstanding" him.

--- From the post:

I let this drop back in March -- please forgive me.

  > Maybe that's the issue for GCC, but for Emacs the issue is to get detailed
  > info out of GCC, which is a different problem.  My understanding is that
  > you're opposed to GCC providing this useful info because that info would
  > need to be complete enough to be usable as input to a proprietary
  > compiler backend.

I don't want to discuss the details on the list, because I think that would mean 50 messages of misunderstanding and tangents for each message that makes progress. Instead, is there anyone here who would like to work on this in detail?