Alan: > The upstream project adopted changes while porting to Microsoft Visual C > that made it easier to adapt to Studio 12 as well, so that is now working > for us, though it may still be a problem for other code written for gcc. > The one issue remaining there that I've been meaning to ask about is I > couldn't find an appropriate -xarch flag to enable the MMX intrinsics without > also enabling SSE - right now it's using -xarch=sse since -xarch=mmx isn't > recognized. (The gcc code uses -mmmx for those.) The changes I made to > port it to Studio 12 can be seen at: > http://cgit.freedesktop.org/pixman/commit/?id=fd7449c4855e77d31770f9042ba43e186c541ce5
I wouldn't think "-xarch=sse" is needed. Many desktop modules contain MMX hardware acceleration code and we don't use this flag when building any modules, yet the hardware acceleration code gets built. I believe if you build with "-xarch=sse" that this will create binaries that will not work on machines that do not have SSE support. So older MMX-only machines won't be able to run the code. Brian
