Ville Skyttä wrote: > On Friday 30 January 2009, Bill Nottingham wrote: >> Kevin Fenzi (kevin@xxxxxxxxx) said, in the FESCo meeting summary: >>> * Architecture Support >>> https://fedoraproject.org/wiki/Features/ArchitectureSupport > >> * 32-bit x86 would be built for i686 by default. 586-compatible processors >> would no longer be supported. > [...] >> * i386: -march=i586 -mtune=generic > > Should the latter be -march=i686? > I was wondering this too but in the opposite direction -- why build everything for i686 by default if we're only updating the compiler flags to i586? Jakub's email sparking this Feature listed the major benefit from getting new instructions with -march=i486. He then listed additional helpful instructions when using -march=i586. Nothing listed for -march=i686. -Toshio
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