broken symlinks

[Samson7]

when emerging ltoize i got this errors:

 * QA Notice: Symbolic link /etc/portage/bashrc.d/43-lto-no-common.sh points to /sys-config/ltoize/files/bashrc.d/43-lto-no-common.sh which does not exist.
 * QA Notice: Symbolic link /etc/portage/bashrc.d/41-lto-patch.sh points to /sys-config/ltoize/files/bashrc.d/41-lto-patch.sh which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/use-ld.conf points to /sys-config/ltoize/files/package.cflags/use-ld.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/tls-dialect.conf points to /sys-config/ltoize/files/package.cflags/tls-dialect.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/portage-bashrc-mv.conf points to /sys-config/ltoize/files/package.cflags/portage-bashrc-mv.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/optimizations.conf points to /sys-config/ltoize/files/package.cflags/optimizations.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/no-semantic-interposition.conf points to /sys-config/ltoize/files/package.cflags/no-semantic-interposition.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/no-plt.conf points to /sys-config/ltoize/files/package.cflags/no-plt.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/no-common-libtool.conf points to /sys-config/ltoize/files/package.cflags/no-common-libtool.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/lto.conf points to /sys-config/ltoize/files/package.cflags/lto.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/ipa-pta.conf points to /sys-config/ltoize/files/package.cflags/ipa-pta.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/graphite.conf points to /sys-config/ltoize/files/package.cflags/graphite.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/devirtualize-at-ltrans.conf points to /sys-config/ltoize/files/package.cflags/devirtualize-at-ltrans.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/package.cflags/cmake-makefile.conf points to /sys-config/ltoize/files/package.cflags/cmake-makefile.conf which does not exist.
 * QA Notice: Symbolic link /etc/portage/make.conf.lto points to /sys-config/ltoize/files/make.conf.lto which does not exist.
 * QA Notice: Symbolic link /etc/portage/make.conf.lto.defines points to /sys-config/ltoize/files/make.conf.lto.defines which does not exist.

And emerge @world doesn't work because make.conf.lto doesn't exist

I'm having the same issue.