sys-fs/unionfs (version 1.2) does not use CONFIG_LOCALVERSION, as in this example: s939 ~ # grep dom0 /usr/src/linux/.config CONFIG_LOCALVERSION="-dom0" s939 ~ # ls -l /usr/src/linux lrwxrwxrwx 1 root root 27 24 dic 07:25 /usr/src/linux -> linux-2.6.16.28-xen-r1-dom0/ s939 ~ # emerge -1 =unionfs-1.2 Calculating dependencies... done! >>> Emerging (1 of 1) sys-fs/unionfs-1.2 to / * unionfs-1.2.tar.gz size ;-) ... [ ok ] * unionfs-1.2.tar.gz RMD160 ;-) ... [ ok ] * unionfs-1.2.tar.gz SHA256 ;-) ... [ ok ] * unionfs-1.2.tar.gz MD5 ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * checking unionfs-1.2.tar.gz ;-) ... [ ok ] * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux * Could not find a Makefile in the kernel source directory. * Please ensure that /usr/src/linux points to a complete set of Linux sources
sorry. something was wrong in mine system. Now I've solved.
