configure.info: Cygnus Configure

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Cygnus Configure

   The Cygnus configure script predates autoconf.  All of its
interesting features have been incorporated into autoconf.  No new
programs should be written to use the Cygnus configure script.
   However, the Cygnus configure script is still used in a few places:
at the top of the Cygnus tree and in a few target libraries in the
Cygnus tree.  Until those uses have been replaced with autoconf, some
brief notes are appropriate here.  This is not complete documentation,
but it should be possible to use this as a guide while examining the
scripts themselves.