Contents | < Browse | Browse >
Saving debugging output
=======================

   Debug and tracing output can be redirected to files using either the
`-o' option to `m4', or with the built-in macro `debugfile':

     debugfile(opt FILENAME)

will send all further debug and trace output to FILENAME.  If FILENAME
is empty, debug and trace output are discarded and if `debugfile' is
called without any arguments, debug and trace output are sent to the
standard error output.