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...ux does for C++. That is a unique and different ABI, and I don't think you can reasonably call it *just* "windows" at any point. -Chandler -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130327/1b1a4a9e/attachment.html>

Hi Eric, > From my perspective Win32 is the windows ABI and mingw and cygwin are their own ABIs No. They are using Windows Platform ABI for almost everything (e.g. calling API, C runtime, etc.). At least mingw does. The differences are exactly in unspecified area (e.g. passing / returning structs by value). The only difference is C++, where mingw / cygwin follows Itanium ABI and MSVC - its