Hi, Probably 2 dumb questions - my only excuse is that I haven't been forced to consider them before. And that's not a very good excuse. My other sin is that this post pretty much repeats the question I've asked in: http://sourceforge.net/p/mingw-w64/mailman/message/34780084/
With all of the mingw-w64 4.x.x i686 compilers that I have used (and there have been a few), any attempt to use the -m64 switch has been a fatal error: sorry, unimplemented: 64-bit mode not compiled in But then I downloaded the 5.3.0 i686-posix-sjlj toolchain from: http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/mingw-builds/5.3.0/threads-posix/sjlj/i686-5.3.0-release-posix-sjlj-rt_v4-rev0.7z/download It *does* allow the -m64 switch to be used. So: Question 1: Given that the 4.x.x i686 compilers do not allow the -m64 switch, why should a 5.3.0 i686 compiler allow the -m64 switch to work ? Question 2: Conversely, given that the 5.3.0 i686 compiler allows the -m64 switch, why do the 4.x.x i686 compilers *not* allow it ? I may have follow-up questions, depending upon the answers to those two questions. Cheers, Rob ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Mingw-w64-public mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
