On Wed, Oct 18, 2023 at 03:12:41AM +0200, Jan Engelhardt wrote: > On Tuesday 2023-10-17 17:10, Michal Suchánek wrote: > > > >> In my system (Ubuntu), I see the directory paths > >> > >> /usr/aarch64-linux-gnu/lib/ > >> /usr/i686-linux-gnu/lib/ > >> /usr/x86_64-linux-gnu/lib/ > >> > >> If there were such a crazy distro that supports multiple kernel arches > >> within a single image, modules might be installed: > >> /usr/x86_64-linux-gnu/lib/module/<version>/ > > > >For me it's /usr/lib/i386-linux-gnu/. > > > >Did they change the scheme at some point? > > It's a complicated mumble-jumble. Prior art exists as in: > > /opt/vendorThing/bin/... > /usr/X11R6/lib/libXi.so.6 [host binary] > /usr/x86_64-w64-mingw32/bin/as [host binary] > /usr/x86_64-w64-mingw32/sys-root/mingw/bin/as.exe [foreign binary] > /usr/platform/SUNW,Ultra-2/lib/libprtdiag_psr.so.1 [looks foreign] > > The use of suffix-based naming must have been established sometime > near the end of the 90s or the start of 2000s as the first biarch > Linux distros emerged. Probably in gcc or glibc sources one will find > the root of where the use of suffix identifiers like /usr/lib64 > started. Leaves the question open "why". That's pretty clear: to be able to install libraries for multiple architectures at the same time. Thanks Michal
