On Thu, Feb 28, 2019 at 06:46:41PM +0100, Andrea Bolognani wrote: > On Thu, 2019-02-28 at 15:52 +0000, Daniel P. Berrangé wrote: > > On Tue, Feb 26, 2019 at 07:04:16PM +0100, Andrea Bolognani wrote: > [...]
> > > > + i686: > > > > + package_arch: i386 > > > > + abi: i686-linux-gnu > > > > + cross_gcc: gcc-i686-linux-gnu > > > > > > The value of 'abi' doesn't look right: based on eg. > > > > > > https://packages.debian.org/sid/i386/libglib2.0-dev/filelist > > > > > > it should be 'i386-linux-gnu' instead. > > > > The 'abi' is what is prefixed on the toolchain binaries, > > and so for this purpose i686-linux-gnu is actually correct: > > > > https://packages.debian.org/sid/amd64/gcc-i686-linux-gnu/filelist > > Okay, so I guess you need to have cross_target=i686-linux-gnu for > > ENV CONFIGURE_OPTS "--host={cross_target} \ > --target={cross_target}" > > to work; however, that will cause issues for > > ENV PKG_CONFIG_LIBDIR "/usr/lib/{cross_target}/pkgconfig" > > because as shown above paths look like > > /usr/lib/i386-linux-gnu/pkgconfig/glib-2.0.pc > > and so on. What an inconsistent mess! Does it mean we need to > carry around both? :( > > > ... Actually, it doesn't look like it: I just tried cross-building > for i686 (on sid/x86_64) by simply passing > > --host=i686-linux-gnu --target=i686-linux-gnu > > and the build system was able to locate all necessary dependencies > despite not having set $PKG_CONFIG_LIBDIR in the environment! > > This seems to be thanks to i686-linux-gnu-pkg-config, which is a > symlink to /usr/share/pkg-config-crosswrapper, being picked up and > invoked instead of the native one. Interesting. I'll have to check this again. In my previous versions of this series, pkgconfig was mistakenly finding the native .pc files, and PKG_CONFIG_LIBDIR was needed to fix it. So that can't have been using the i686-linux-gnu-pkg-config binary before. I'll try and see what changed.. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
