# cat /var/tmp/portage/app-text/unac-1.8.0/temp/aclocal.out
***** aclocal *****
***** PWD: /var/tmp/portage/app-text/unac-1.8.0/work/unac-1.8.0.orig
acinclude.m4:35: warning: underquoted definition of AC_COMPILE_WARNINGS
acinclude.m4:35: run info Automake 'Extending aclocal'
acinclude.m4:35: or see http://www.gnu.org/software/automake/manual/automake.html#Extending-aclocal
configure.ac:29: error: 'AM_CONFIG_HEADER': this macro is obsolete.
You should use the 'AC_CONFIG_HEADERS' macro instead.
/usr/share/aclocal-1.13/obsolete-err.m4:12: AM_CONFIG_HEADER is expanded from...
configure.ac:29: the top level
autom4te-2.69: /usr/bin/m4 failed with exit status: 1
aclocal-1.13: error: echo failed with exit status: 1
Please note that although this package is stable and automake-1.13 is ~arch,
this is still a priority fix because ~arch users are immediately affected.
Fixed, thanks for reporting.
+ 23 Jul 2013; Alexandre Rostovtsev <email@example.com> unac-1.8.0.ebuild,
+ Fix building with automake-1.13.1 and >1.14 (bug #467618, thanks to Ian
+ Stakenvicius). Clean up the ebuild a bit.