[PATCH] D24933: Enable configuration files in clang

[Michał Górny via cfe-commits]

mgorny added a comment.

I don't agree with the argumentation of @hans; however, I have my own concerns. I personally dislike the idea of reusing command-line option format for this. While I can see this is the simplest solution, it brings at least a few problems and questions. I'm afraid that this would result in a poor solution that gradually gets worse as people try to workaround its limitations.

Maybe it'd be better to take a step back and attempt to create a regular, .ini/.conf-style configuration file. One particular advantage of that is that we can precisely decide which options to support and how to support them. I think this could be better both for opponents of 'free configuration' (since it will be less powerful and more controlled), and for proponents of nice configuration files (such as me).

For example, the advantage of this is that `-std=` will no longer magically apply to all source types. If we decide to have a default -std= control via system configuration, we can add separate options for each language (which wouldn't be really useful as command-line options).


https://reviews.llvm.org/D24933