> I think you should look at the Fedora and Ubuntu distros for patches to support '-mx32' : > > https://sites.google.com/site/x32abi/ That definitely looks like being very helpful; thanks a lot :-) -----Ursprüngliche Nachricht----- Von: Kai Ruottu [mailto:kai.ruottu@xxxxxxxxxxx] Gesendet: Dienstag, 15. April 2014 10:10 An: Warlich, Christof; gcc-help@xxxxxxxxxxx Betreff: Re: AW: building gcc to support -mx32 15.4.2014 9:39, Warlich, Christof kirjoitti: > As I got no response: Is x32 support a somewhat unusual configuration for x86_64? I think you should look at the Fedora and Ubuntu distros for patches to support '-mx32' : https://sites.google.com/site/x32abi/ > I'm doing a sysroot build, with the sysroot directory initially populated with the appropriate glibc files in the > directories lib, lib64 and libx32 for 32, 64 and x32 glibc. These hint you being on the Fedora side, Ubuntu would expect them being in something totally different places...