INFO: setup Package: sys-apps/grep-3.11-r1:0 Repository: gentoo Maintainer: base-system@gentoo.org USE: abi_x86_64 amd64 egrep-fgrep elibc_glibc kernel_linux nls pcre FEATURES: preserve-libs sandbox userpriv usersandbox INFO: prepare Applying grep-3.11-100k-files-dir.patch ... INFO: install Final size of build directory: 20580 KiB (20.0 MiB) Final size of installed tree: 1764 KiB ( 1.7 MiB) QA: other QA Notice: Found the following implicit function declarations in configure logs: /var/tmp/portage/sys-apps/grep-3.11-r1/work/grep-3.11/config.log:3301 - unreachable Check that no features were accidentally disabled. See https://wiki.gentoo.org/wiki/Modern_C_porting.