Comment 5 for bug 300803

Andy this caused a regression with libdrm-dev:
dpkg : erreur de traitement de /var/cache/apt/archives/linux-libc-dev_2.6.27-11.21_amd64.deb (--unpack) :
 tentative de remplacement de « /usr/include/drm/drm_sarea.h », qui appartient aussi au paquet libdrm-dev

I think you shouldn't touch something as fundamental as the linux-libc-dev headers in a released distro; we rely on being able to build packages for security updates and this change might break random packages without us noticing until we need to build them.