>>> Emerging (1 of 5) app-text/sgml-common-0.6.3-r4 to /
 * sgml-common-0.6.3.tgz MD5 ;-) ...                                                                                    [ ok ]
 * sgml-common-0.6.3.tgz RMD160 ;-) ...                                                                                 [ ok ]
 * sgml-common-0.6.3.tgz SHA1 ;-) ...                                                                                   [ ok ]
 * sgml-common-0.6.3.tgz SHA256 ;-) ...                                                                                 [ ok ]
 * sgml-common-0.6.3.tgz size ;-) ...                                                                                   [ ok ]
 * checking ebuild checksums ;-) ...                                                                                    [ ok ]
 * checking auxfile checksums ;-) ...                                                                                   [ ok ]
 * checking miscfile checksums ;-) ...                                                                                  [ ok ]
 * checking sgml-common-0.6.3.tgz ;-) ...                                                                               [ ok ]
>>> Unpacking source...
>>> Unpacking sgml-common-0.6.3.tgz to /var/tmp/portage/sgml-common-0.6.3-r4/work
 * Requested automake 1.5
 * Using automake (GNU automake) 1.5
 * Using aclocal (GNU automake) 1.5
 * Automake used for the package (1.4) differs from
 * the installed version (1.5).
 * Running eautoreconf in '/var/tmp/portage/sgml-common-0.6.3-r4/work/sgml-common-0.6.3' ...
 * Running aclocal ...                                                                                                  [ ok ]
 * Running autoconf ...                                                                                                 [ !! ]

 * Failed Running autoconf !
 *
 * Include in your bugreport the contents of:
 *
 *   /var/tmp/portage/sgml-common-0.6.3-r4/temp/autoconf-5389.out


!!! ERROR: app-text/sgml-common-0.6.3-r4 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_unpack
  ebuild.sh, line 708:   Called src_unpack
  sgml-common-0.6.3-r4.ebuild, line 27:   Called eautomake
  autotools.eclass, line 179:   Called eautoreconf
  autotools.eclass, line 85:   Called eautoconf
  autotools.eclass, line 158:   Called autotools_run_tool 'autoconf'
  autotools.eclass, line 242:   Called die

!!! Failed Running autoconf !
!!! If you need support, post the topmost build error, and the call stack if relevant.