(m4.info)Bugs

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1.3 Problems and bugs
=====================

If you have problems with GNU M4 or think you've found a bug, please
report it.  Before reporting a bug, make sure you've actually found a
real bug.  Carefully reread the documentation and see if it really says
you can do what you're trying to do.  If it's not clear whether you
should be able to do something or not, report that too; it's a bug in
the documentation!

   Before reporting a bug or trying to fix it yourself, try to isolate
it to the smallest possible input file that reproduces the problem.
Then send us the input file and the exact results 'm4' gave you.  Also
say what you expected to occur; this will help us decide whether the
problem was really in the documentation.

   Once you've got a precise problem, send e-mail to <bug-m4@gnu.org>.
Please include the version number of 'm4' you are using.  You can get
this information with the command 'm4 --version'.  Also provide details
about the platform you are executing on.

   Non-bug suggestions are always welcome as well.  If you have
questions about things that are unclear in the documentation or are just
obscure features, please report them too.