I'm not adding emerge --info or build.log here, since this is obviously because of missing introspection macro: $ cat /var/tmp/portage/x11-libs/libnotify-0.7.1/temp/automake.out ***** automake ***** ***** PWD: /var/tmp/portage/x11-libs/libnotify-0.7.1/work/libnotify-0.7.1 ***** automake --add-missing --copy libnotify/Makefile.am:84: HAVE_INTROSPECTION does not appear in AM_CONDITIONAL libnotify/Makefile.am:117: HAVE_INTROSPECTION does not appear in AM_CONDITIONAL
confirmed: copying introspection.m4 to /usr/share/aclocal solved the problem
+ 05 Feb 2011; Samuli Suominen <ssuominen@gentoo.org> libnotify-0.7.1.ebuild: + Use copy of introspection.m4 from + http://git.gnome.org/browse/gir-repository/plain/m4/introspection.m4 to pass + autotools wrt #353136.