>>> Unpacking source...
>>> Unpacking gconfmm-2.12.0.tar.bz2 to /var/tmp/portage/gconfmm-2.12.0/work
 [32;01m*[0m Fixing OMF Makefiles ...
[A[72C  [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Running eautoreconf in '/var/tmp/portage/gconfmm-2.12.0/work/gconfmm-2.12.0' ...
 [32;01m*[0m Requested autoconf 2.5
 [32;01m*[0m Using autoconf (GNU Autoconf) 2.61
 [32;01m*[0m Using autoheader (GNU Autoconf) 2.61
 [32;01m*[0m Requested automake latest: 1.10
 [32;01m*[0m Using automake (GNU automake) 1.10
 [32;01m*[0m Using aclocal (GNU automake) 1.10
 [32;01m*[0m Running aclocal ...
[A[72C  [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Running libtoolize --copy --force --automake ...
[A[72C  [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Running aclocal ...
[A[72C  [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Running autoconf ...
[A[72C  [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Running autoheader ...
[A[72C  [34;01m[ [31;01m!![34;01m ][0m
 [32;01m*[0m Running automake --add-missing --copy ...
[A[72C  [34;01m[ [32;01mok[34;01m ][0m
 [32;01m*[0m Running elibtoolize in: gconfmm-2.12.0/scripts
 [32;01m*[0m   Applying max_cmd_len-1.5.0.patch ...
 [32;01m*[0m   Applying sed-1.5.6.patch ...
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/gconfmm-2.12.0/work/gconfmm-2.12.0 ...
 * econf: updating gconfmm-2.12.0/scripts/config.guess with /usr/share/gnuconfig/config.guess
 * econf: updating gconfmm-2.12.0/scripts/config.sub with /usr/share/gnuconfig/config.sub
./configure --prefix=/usr --host=i686-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --build=i686-pc-linux-gnu
checking for a BSD-compatible install... /bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
./configure: line 2501: syntax error near unexpected token `scripts'
./configure: line 2501: `AL_ACLOCAL_INCLUDE(scripts)'

!!! Please attach the following file when filing a report to bugs.gentoo.org:
!!! /var/tmp/portage/gconfmm-2.12.0/work/gconfmm-2.12.0/config.log

!!! ERROR: dev-cpp/gconfmm-2.12.0 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  gconfmm-2.12.0.ebuild, line 33:   Called gnome2_src_compile
  gnome2.eclass, line 70:   Called gnome2_src_configure
  gnome2.eclass, line 66:   Called econf
  ebuild.sh, line 540:   Called die

!!! econf failed
!!! If you need support, post the topmost build error, and the call stack if relevant.