On Tue, Jun 24, 2008 at 09:42:59AM -0400, Jarod Wilson wrote: > On Tuesday 24 June 2008 06:45:14 am Carlo Marcelo Arenas Belon wrote: > > attached an implementation which fixes the 2 issues raised before and also > > does some extra cleanup, but that will need more testing in different Linux > > distributions and with different autoconf versions before it can be > > backported. > > > > as explained before, I don't think is a good solution though as it is just > > extending the original hack (which wasn't really needed either) > > Just had another thought with respect to setting lib64 if > host_cpu=powerpc64... The vast majority of the time, a 32-bit userspace is > actually preferred on 64-bit PowerPC -- 32-bit ppc doesn't have the register > limitations 32-bit x86 has. The gains you see with 64-bit x86_64 over 32-bit > x86, outside of addressable memory, don't exist when going to 64-bit ppc > binaries (since ppc32 has a saner register space than x86), and you often get > marginally slower code, since there's an expanded memory footprint. Need for > huge amounts of memory is one of the few reasons to run a 64-bit ppc binary > on a 64-bit ppc kernel.
which is why I presume fedora ppc and therefore the fedora ppc package will be 32bit and should be using /usr/lib, right?, therefore the only builds that should be supported in fedora will be: i386, x86_64 and ppc. > In other words, yes, lib64 is correct if building a ppc64 binary, but not for > a ppc32 binary, which is actually what most people should be using on a ppc64 > system. That being the case, if we automatically swap in lib64 on ppc64, it > should probably be done only if host_cpu=powerpc64 *and* the binary being > built is 64-bit. agree, and that was another deficiency of the current (and previous) hack, which always assumed based on the type of CPU available which kind of build was being used. in x86 that means that probably means that if you use "CFLAGS=-m32" in an x86_64 system you will get 32bit ABI libraries in the directory where 64bit ABI libraries are meant to be: /usr/lib64 and then I presume the hack had just backfired and broke the ppc package? Carlo ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
