>>> Emerging (1 of 4) sys-libs/timezone-data-2007f to /
>>> Downloading 'http://distfiles.gentoo.org/distfiles/tzcode2007f.tar.gz'
--15:58:00--  http://distfiles.gentoo.org/distfiles/tzcode2007f.tar.gz
           => `/usr/portage/distfiles/tzcode2007f.tar.gz'
Resolving distfiles.gentoo.org... 64.50.236.52, 64.50.238.52, 156.56.247.195, ...
Connecting to distfiles.gentoo.org|64.50.236.52|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 189,906 (185K) [application/x-gzip]

100%[================================================================================>] 189,906      215.81K/s

15:58:01 (215.13 KB/s) - `/usr/portage/distfiles/tzcode2007f.tar.gz' saved [189906/189906]

>>> Downloading 'http://distfiles.gentoo.org/distfiles/tzdata2007f.tar.gz'
--15:58:01--  http://distfiles.gentoo.org/distfiles/tzdata2007f.tar.gz
           => `/usr/portage/distfiles/tzdata2007f.tar.gz'
Resolving distfiles.gentoo.org... 64.50.236.52, 64.50.238.52, 216.165.129.135, ...
Connecting to distfiles.gentoo.org|64.50.236.52|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 160,513 (157K) [application/x-gzip]

100%[================================================================================>] 160,513      203.54K/s

15:58:02 (203.15 KB/s) - `/usr/portage/distfiles/tzdata2007f.tar.gz' saved [160513/160513]

 * checking ebuild checksums ;-) ...                                                                                  [ ok ]
 * checking auxfile checksums ;-) ...                                                                                 [ ok ]
 * checking miscfile checksums ;-) ...                                                                                [ ok ]
 * checking tzdata2007f.tar.gz ;-) ...                                                                                [ ok ]
 * checking tzcode2007f.tar.gz ;-) ...                                                                                [ ok ]
>>> Unpacking source...
>>> Unpacking tzdata2007f.tar.gz to /var/tmp/portage/sys-libs/timezone-data-2007f/work
>>> Unpacking tzcode2007f.tar.gz to /var/tmp/portage/sys-libs/timezone-data-2007f/work
 * Applying timezone-data-2005n-makefile.patch ...                                                                    [ ok ]
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/sys-libs/timezone-data-2007f/work ...
 * QA Notice: USE Flag 'elibc_FreeBSD' not in IUSE for sys-libs/timezone-data-2007f
 * QA Notice: USE Flag 'elibc_glibc' not in IUSE for sys-libs/timezone-data-2007f
cc1: error: unrecognized command line option "-fO2"
cc1: error: unrecognized command line option "-fO2"
make: *** [zic.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [localtime.o] Error 1

!!! ERROR: sys-libs/timezone-data-2007f failed.
Call stack:
  ebuild.sh, line 1615:   Called dyn_compile
  ebuild.sh, line 972:   Called qa_call 'src_compile'
  ebuild.sh, line 44:   Called src_compile
  timezone-data-2007f.ebuild, line 38:   Called die

!!! emake failed
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/sys-libs/timezone-data-2007f/temp/build.log'.