You'd need a VM without hardware virtualization (disabled VT-x/AMD-V). Then the recompiler which is built with MinGW would be used pretty heavily. If you can run, say, Windows XP that way then the MinGW-produced code isn't too broken.
If you have hardware virtualization enabled then the recompiler will be used very little or not at all. - Michal ----- Original Message ----- From: fl...@flint-inc.ru To: frank.mehn...@oracle.com, vbox-dev@virtualbox.org Sent: Tuesday, June 27, 2017 11:35:27 PM GMT +01:00 Amsterdam / Berlin / Bern / Rome / Stockholm / Vienna Subject: Re: [vbox-dev] Windows build requirements for MinGW Hi, Just FYI, today I finally had time to try out this build I did with MinGW32 version 4.5.4, and it seems to be working OK. I did not do extensive testing though, just installed it onto a Win7 x64 host, started a WinXP virtual machine and worked in it for a bit. Unfortunately I'm not sure what exactly the recompiler module does, so I don't know where to look for possible problems that the change could cause. > Hi, > Fair enough, thank you very much for the information! > I'll keep that in mind. >> Michal is right. And years ago there was a more strict dependency to an old >> version of gcc from code in src/recompiler. This has been fixed long time >> ago. >> Newer versions of MingW will most likely work but are not tested ATM. >> Kind regards, >> Frank >> On Montag, 26. Juni 2017 10:51:53 CEST Michal Necasek wrote: >>> >>> Because MinGW 3.3.3 is what's used for the official builds and it's known >>> to be working. Other versions may well work, they just aren't positively >>> known to be working. >>> >>> And no, MinGW is not needed for the Guest Additions at all. >>> >>> >>> - Michal >>> >>> ----- Original Message ----- >>> From: fl...@flint-inc.ru >>> To: vbox-dev@virtualbox.org >>> Sent: Monday, June 26, 2017 7:17:12 PM GMT +01:00 Amsterdam / Berlin / Bern >>> / Rome / Stockholm / Vienna >>> Subject: [vbox-dev] Windows build requirements for MinGW >>> >>> Hi, >>> >>> The wiki page >>> https://www.virtualbox.org/wiki/Windows%20build%20instructions >>> says that for 32-bit build one requires MinGW 3.3.3. Why exactly this >>> version? I >>> tried to build VB using MinGW32 version 4.5.4 (the same rubenvb build as >>> MinGW64), and it compiled without problems (except that I had to patch >>> configure.vbs, obviously). I did not test yet whether it works, though... >>> >>> The only thing I did not compile is Guest Additions. Is it for them that >>> version >>> 3.3.3 is needed? Or, maybe, some runtime compatibility with older systems >>> (like >>> WinXP)? Or is it just legacy restriction not required anymore but forgotten >>> to >>> be updated? -- Bye. With best regards, Konstantin Vlasov. _______________________________________________ vbox-dev mailing list vbox-dev@virtualbox.org https://www.virtualbox.org/mailman/listinfo/vbox-dev _______________________________________________ vbox-dev mailing list vbox-dev@virtualbox.org https://www.virtualbox.org/mailman/listinfo/vbox-dev