makeinfo --docbook

[Nikos Mavrogiannopoulos]

When trying to use the suggested way of converting to epub (via docbook)
I get the following errors with makeinfo:

$ makeinfo --docbook test.texi
test.texi:8: warning: @image file `gnutls-x509.txt' unreadable: No such
file or directory.
Element stack index : 1

makeinfo: Removing output file `/home/nmav/cvs/gnutls/doc/test.xml' due
to errors; use --force to preserve.


I searches for .txt even though a .png exists. Even if I force the
extension to the file the .png.txt is tried.

am I missing something obvious?

regards,
Nikos

\input texinfo   @c -*-texinfo-*-
@comment %**start of header
@setfilename test.info
@settitle Test


@float Figure,fig:x509
@image{gnutls-x509,7cm}
@caption{An example of the X.509 hierarchical trust model.}
@end float

@bye