I do work at a company (not Apple), developing compilers -- specifically Clang. I know most of the folks working on Clang at Apple, and I know Douglas Gregor quite well. I'm on Doug's study group working on modules.
So, I think I have some insight into what's going on. The design and implementation of the modules support in Clang is absolutely being driven by Doug at Apple. Anyone can see that. =] However, there are some other aspects to this effort that were not the focus of an LLVM dev meeting talk. Daveed Vandevoorde has written the proposals to the committee thus far[1], and is continuing to work on the proposal and language-design side[2]. Doug is currently the one driving the implementation forward, but Clang and this implementation is completely open source, and the intent (to my knowledge thus far) is absolutely to converge with the proposed standardized feature.
I expect lots of others will end up contributing ideas and and implementation effort long-term, even though Doug has charted the course on the implementation side and Daveed on the proposal side thus far. I don't think this is at all likely to become a vendor-specific extension with no standards support. This is something the committee is really actively pursuing with broad interest across organizations and representatives.
So, I think I have some insight into what's going on. The design and implementation of the modules support in Clang is absolutely being driven by Doug at Apple. Anyone can see that. =] However, there are some other aspects to this effort that were not the focus of an LLVM dev meeting talk. Daveed Vandevoorde has written the proposals to the committee thus far[1], and is continuing to work on the proposal and language-design side[2]. Doug is currently the one driving the implementation forward, but Clang and this implementation is completely open source, and the intent (to my knowledge thus far) is absolutely to converge with the proposed standardized feature.
[1]: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n334... [2]: http://youtu.be/8SOCYQ033K8
I expect lots of others will end up contributing ideas and and implementation effort long-term, even though Doug has charted the course on the implementation side and Daveed on the proposal side thus far. I don't think this is at all likely to become a vendor-specific extension with no standards support. This is something the committee is really actively pursuing with broad interest across organizations and representatives.