Ralf. I saw this thread http://lists.gnu.org/archive/html/bug-autoconf/2008-04/msg00028.html and apparently you now use autoconf 2.62 on the CVS head (what is to become 4.9). Unfortunately, our site uses RHEL4 and I'm stuck. Do I now have to build + install gm4? Any chance to remain with autoconf 2.61 for the 4.9 release? Thanks - T.