OK. I plodded through the messages. 60% of the way down through all that output lives this text:
++ env LANG= LC_MESSAGES= LC_ALL= LANGUAGE= makeinfo --no-split --html -o autogen.html /home/bkorb/ag/ag/doc/autogen.texi /home/bkorb/ag/ag/doc/autogen.texi:13283: `Function Index' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:13278: `Concept Index' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:12822: `Copying This Manual' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:12810: `Future' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:11515: `Add-Ons' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:6265: `AutoOpts' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:5992: `Installation' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:5417: `autogen Invocation' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:5268: `Augmenting AutoGen' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:1603: `Template File' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:521: `Definitions File' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:188: `Introduction' has no Up field (perhaps incorrect sectioning?). /home/bkorb/ag/ag/doc/autogen.texi:13283: warning: unreferenced node `Function Index'. /home/bkorb/ag/ag/doc/autogen.texi:13278: warning: unreferenced node `Concept Index'. /home/bkorb/ag/ag/doc/autogen.texi:12822: warning: unreferenced node `Copying This Manual'. /home/bkorb/ag/ag/doc/autogen.texi:12810: warning: unreferenced node `Future'. makeinfo: Removing output file `autogen.html' due to errors; use --force to preserve. ++ calcsize autogen.html +++ ls -ksl autogen.html ls: autogen.html: No such file or directory I don't know what the problem is because all the other derivations work okay, only the "--no-split --html" variation fails. Works fine, also, with texi2html: http://www.gnu.org/software/autogen/manual/html_mono/autogen.html