Created attachment 405306 [details] build.log Have not installed qt before, as I emerge dev-qt/qtgui, make error happens. The results of both "emerge -pqv '=dev-qt/qtgui-4.8.6-r4::gentoo'" and "emerge -pqv '=dev-qt/qt3support-4.8.6-r1::gentoo'" are the same, they both show: [ebuild N ] dev-qt/qtgui-4.8.6-r4 USE="accessibility cups exceptions glib mng qt3support tiff xv (-aqua) -debug -egl -gtkstyle -nas -nis -pch -trace -xinerama" ABI_X86="(64) -32 (-x32)" [ebuild N ] dev-qt/qt3support-4.8.6-r1 USE="accessibility exceptions (-aqua) -debug -pch" ABI_X86="(64) -32 (-x32)" Which suggests interdependence
Created attachment 405308 [details] emerge --info
The initial problem is found in build.log, whereas the "emerge -pqv" is only supplementary info, sorry for possible confusion made by including this in the description.
Was using 13.0/no-multilib profile, then switched to 13.0/desktop in order to install x11-base/xorg-drivers, then emerge --deep --with-bdeps=y --newuse @world, which resolved that dev-qt/qtgui was to be installed as build depenency.
*correction*: I switched to 13.0/desktop profile AFTER installing x11-base/xorg-drivers, in order to install x11-base/xorg-x11, and after I switch to that profile, I did emerge --deep --with-bdep=y --newuse @world.
So you're trying to build qtgui with a desktop profile against a qtcore that was built with a no-multilib profile... is that correct? Switching from no-multilib to multilib is not supported (https://wiki.gentoo.org/wiki/AMD64/FAQ#What_is_multilib_and_how_can_I_use_it.3F), and even if you want to do it, it's much more complicated than a simple emerge -DN @world. See for example http://jkroon.blogs.uls.co.za/it/gentoo/gentoo-converting-no-multilib-to-multilib and https://guymann.github.io/2013/02/11/32bit-gentoo/
