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The effect of `--cygnus'
************************

   Cygnus Solutions has slightly different rules for how a
`Makefile.in' is to be constructed.  Passing `--cygnus' to `automake'
will cause any generated `Makefile.in' to comply with Cygnus rules.

   Here are the precise effects of `--cygnus':

   * Info files are always created in the build directory, and not in
     the source directory.

   * `texinfo.tex' is not required if a Texinfo source file is
     specified.  The assumption is that the file will be supplied, but
     in a place that Automake cannot find.  This assumption is an
     artifact of how Cygnus packages are typically bundled.

   * `make dist' will look for files in the build directory as well as
     the source directory.  This is required to support putting info
     files into the build directory.

   * Certain tools will be searched for in the build tree as well as in
     the user's `PATH'.  These tools are `runtest', `expect',
     `makeinfo' and `texi2dvi'.

   * `--foreign' is implied.

   * The options `no-installinfo' and `no-dependencies' are implied.

   * The macros `AM_MAINTAINER_MODE' and `AM_CYGWIN32' are required.

   * The `check' target doesn't depend on `all'.

   GNU maintainers are advised to use `gnu' strictness in preference to
the special Cygnus mode.