Re: [libvirt] libvirt on x64

On 07/26/2010 12:17 PM, Tavares, John wrote: By default, 64-bit RHEL does not ship 32-bit versions of a library unless it is necessary. And yes, on my x86_64 Fedora 13 box, I have only the 64-bit libvirt installed (my earlier suggestion to use 'yum install libvirt-devel.i686' was exactly what I typed at my box, although I then aborted that command rather than proceeding with the 32-bit counterpart install). One way to mark a 32-bit library as necessary is to list it as an rpm dependency. But why? If you are building rpms, you might as well distribute a source rpm, which can then be built for both i686 and x86_64 (the i686 will depend on the 32-bit library, while the x86_64 can take advantage of the 64-bit library rather than being crippled to the 32-bit version), rather than insisting that anyone who uses your package must use the 32-bit pre-built version. But if you are not distributing via rpms, then you must assume that your customers will not have 32-bit libvirt already installed on their 64-bit machines, since that's not how RHEL generally works (it is intentional that RHEL does not install duplicate 32-bit libraries for every possible .so). So either you will have to build both versions of your software against the two library versions on x86_64, or tell customers that they need to install the 32-bit libraries on their own before using your 32-bit app. -- Eric Blake eblake(a)redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org