As this keeps users from installing XFCE on their fresh installation from Gentoo, the issue is quite critical.
Created attachment 312629 [details] Build log
FYI 1.4.3 builds fine.
Same here. My /var/tmp/portage/x11-libs/libX11-1.4.4/temp/automake.out says: ***** automake ***** ***** PWD: /var/tmp/portage/x11-libs/libX11-1.4.4/work/libX11-1.4.4 ***** automake --add-missing --copy configure.ac:17: version mismatch. This is Automake 1.11.5, configure.ac:17: but the definition used by this AM_INIT_AUTOMAKE configure.ac:17: comes from Automake 1.11.1. You should recreate configure.ac:17: aclocal.m4 with aclocal and run automake again.
x11-libs/libX11-1.4.99.901 is not affected by the problem
Please retry with the eaclocal fix I've just committed.
(In reply to comment #5) > Please retry with the eaclocal fix I've just committed. I was affected by the same problem. Rev 1.50 of /eclass/autotools-utils.eclass fixed the problem for me. Thanks!