creating cache ./config.cache checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking build system type... i686-pc-linux-gnu checking for a BSD compatible install... /bin/install -c checking whether build environment is sane... configure: error: newly created file is older than distributed files! Check your system clock !!! ERROR: The ebuild did not complete successfully. !!! Function src_compile, Line 2501, Exitcode 1 !!! (no error message) !!! emerge aborting on /usr/portage/net-libs/libwww/libwww-5.4.0.ebuild . I got the following error on the PHP ebuild.
Fix your clock. If it never sets the time correctly consider using ntp.