I started getting that error after I switched from 'default/linux/amd64/23.0/no-multilib/hardened/systemd' to 'default/linux/amd64/23.0/no-multilib/systemd' as follows:
eselect profile set 30 env-update && source /etc/profile emerge -va1 binutils env-update && source /etc/profile emerge -va1 gcc env-update && source /etc/profile emerge -va1 binutils glibc env-update && source /etc/profile emerge -vea @world When usbip failed with that error I did `emerge --resume --exclude='net-misc/usbip'`. efitools and dqlite also failed with missing headers errors. I did the same and everything else built and works fine. Initially I also added sys-devel/gcc -pie to /etc/portage/profile/package.use.forced/ but then I removed it and repeated all the steps. All three packages that fail to build where installed before (same versions) and I have them installed on another machine that's still on a hardened profile. On the case of usbip it seems that it's trying to install the libraries on /usr/lib rather than /usr/lib64. The same package installed to lib64 on the other machine. I'm at a loss as to what to do now. I would be grateful for any help!
