INFO: setup
Package:    app-emulation/virtualbox-guest-additions-7.0.8-r2:0/7.0
Repository: gentoo
Maintainer: ceamac@gentoo.org
USE:        abi_x86_64 amd64 dbus elibc_glibc kernel_linux strip
FEATURES:   preserve-libs sandbox userpriv usersandbox
Determining the location of the kernel source code
Found kernel source directory:
    /usr/src/linux
Found sources for kernel version:
    6.3.5-gentoo-dist
Checking for suitable kernel configuration options ...
Preparing x86_64-pc-linux-gnu toolchain for kernel modules (override with KERNEL_CHOST) ...
Toolchain picked for kernel modules (override with KERNEL_CC, _LD, ...): '/usr/bin/x86_64-pc-linux-gnu-gcc-13' '/usr/bin/x86_64-pc-linux-gnu-g++-13' '/usr/bin/x86_64-pc-linux-gnu-ld.bfd' '/usr/bin/x86_64-pc-linux-gnu-gcc-ar' '/usr/bin/x86_64-pc-linux-gnu-gcc-nm' '/usr/bin/x86_64-pc-linux-gnu-objcopy' '/usr/bin/x86_64-pc-linux-gnu-objdump' '/usr/bin/x86_64-pc-linux-gnu-readelf' '/usr/bin/x86_64-pc-linux-gnu-strip'
INFO: prepare
Applying virtualbox-guest-additions-7.0.8-kernel-6.4-patch-1.patch ...
Applying virtualbox-guest-additions-7.0.8-kernel-6.4-patch-2.patch ...
Extracting guest kernel module sources ...
Applying vboxguest-6.1.36-log-use-c99.patch ...
Applying patches from /var/tmp/portage/app-emulation/virtualbox-guest-additions-7.0.8-r2/work/virtualbox-patches-7.0.8/patches ...
  001_virtualbox-5.0.16-mesa-check.patch ...
  002_virtualbox-5.2.16-remove-configure-checks.patch ...
  003_virtualbox-7.0.8-restore_old_machines_dir.patch ...
  005_virtualbox-7.0.8-asneeded.patch ...
  006_virtualbox-4.2.18-vboxwebsrv_fix.patch ...
  009-virtualbox-5.1.0-add_missing_gl_header.patch ...
  011_virtualbox-6.0.0_beta2-xpcom_const.patch ...
  012_virtualbox-6.1.0-include_opengl_headers.patch ...
  014_virtualbox-6.0.14-Glsizeiptr.patch ...
INFO: configure
./configure --with-gcc=x86_64-pc-linux-gnu-gcc --with-g++=x86_64-pc-linux-gnu-g++ --nofatal --disable-xpcom --disable-sdl-ttf --disable-pulse --disable-alsa --target-arch=amd64 --with-linux=/usr/src/linux --build-headless
ERROR: compile
ERROR: app-emulation/virtualbox-guest-additions-7.0.8-r2::gentoo failed (compile phase):
  emake failed

If you need support, post the output of `emerge --info '=app-emulation/virtualbox-guest-additions-7.0.8-r2::gentoo'`,
the complete build log and the output of `emerge -pqv '=app-emulation/virtualbox-guest-additions-7.0.8-r2::gentoo'`.
The complete build log is located at '/var/cache/portage/logs/build/app-emulation/virtualbox-guest-additions-7.0.8-r2:20230601-064430.log.gz'.
For convenience, a symlink to the build log is located at '/var/tmp/portage/app-emulation/virtualbox-guest-additions-7.0.8-r2/temp/build.log.gz'.
The ebuild environment file is located at '/var/tmp/portage/app-emulation/virtualbox-guest-additions-7.0.8-r2/temp/environment'.
Working directory: '/var/tmp/portage/app-emulation/virtualbox-guest-additions-7.0.8-r2/work/VirtualBox-7.0.8'
S: '/var/tmp/portage/app-emulation/virtualbox-guest-additions-7.0.8-r2/work/VirtualBox-7.0.8'