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Half of PR/12744. Allow tarball builds without flex and bison/byacc

From: Kelley Cook <kcook34 at ford dot com>
To: Nathanael Nerode <neroden at twcny dot rr dot com>, gcc-patches at gcc dot gnu dot org
Date: Tue, 13 Jan 2004 15:14:28 -0500
Subject: Half of PR/12744. Allow tarball builds without flex and bison/byacc
Hop-count: 1
Reply-to: Kelley Cook <kelleycook at yahoo dot com>

As promised ...

For easier reviewing, I split the patch into two hunks.

This patch basically blows away $(parsedir) and adds in a new langhook of srcextra for handling the --enable-generated-files-in-srcdir to copy those files back to the source directory, when requested.

The pre-existing VPATH will take care of the rest for us.

I'll post the similar no-makeinfo half following approval of this one...

o bootstrapped i686-pc-cygwin without --enable-generated-files-in-srcdir

o bootstrapped i686-pc-cygwin with --enable-generated-files-in-srcdir

o followed by uninstalling flex & bison and another bootstrap
i686-pc-cygwin without --enable-generated-files-in-srcdir

OK to install?
Kelley Cook

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