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Re: Successful build of GCC 4.2.0 RC3 on latest Cygwin snapshot 20070427


Aaron Gray wrote:

One issue that might affect many some is that COM doesn't work. <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27067> has a patch that is pending review I guess, but probably won't go into 4.2.

Does this effect XPCOM meaning Mozilla and friends will not compile ?

It is triggered anywhere multiple inheritance is combined with stdcall. Since I believe XPCOM uses stdcall on Windows (but "cdecl" on other targets), I believe the answer here is 'Yes, Mozilla will not compile.'

But its fine on Unix platforms, that is good.


I am not sure if MinGW will/is used to compile Mozilla on Windows anyway.

I think it's likely that mingw.org will include this fix in their own releases of 4.2, which is probably a bad thing, as it makes the need to get this fix into official GCC sources seem less urgent. A lot of GCC patches for Windows-related issues tend to stall for a long time in this state; I'm not really sure why.

Yes, this is perplexing.


Aaron


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