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Date:   Mon, 16 Jul 2018 19:41:32 -0700
From:   Matthew Wilcox <willy@infradead.org>
To:     Ross Zwisler <ross.zwisler@linux.intel.com>
Cc:     kbuild test robot <lkp@intel.com>, kbuild-all@01.org,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
        Dan Williams <dan.j.williams@intel.com>,
        Dave Chinner <david@fromorbit.com>, Jan Kara <jack@suse.cz>,
        linux-nvdimm@lists.01.org
Subject: Re: [PATCH 1/5] radix tree test suite: fix mapshift build target
Message-ID: <20180717024132.GC7934@bombadil.infradead.org>
References: <20180503192430.7582-1-ross.zwisler@linux.intel.com>
 <20180503192430.7582-2-ross.zwisler@linux.intel.com>
 <20180715230052.GA6486@bombadil.infradead.org>
 <20180716160710.GA2287@linux.intel.com>
 <20180716195249.GA14380@bombadil.infradead.org>
 <20180716210820.GA17164@linux.intel.com>
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On Mon, Jul 16, 2018 at 03:08:20PM -0600, Ross Zwisler wrote:
> On Mon, Jul 16, 2018 at 12:52:49PM -0700, Matthew Wilcox wrote:
> > On Mon, Jul 16, 2018 at 10:07:10AM -0600, Ross Zwisler wrote:
> <>
> > OK ... what version of make are you using?  Because this works fine for me:
> > 
> > $ git clone linux clean
> > $ cd clean
> > $ git checkout v4.17
> > $ cd tools/testing/radix-tree/ 
> > $ git revert 8d9fa88edd5e360b71765feeadb915d4066c9684
> > $ make
> > 
> > $ make --version
> > GNU Make 4.1
> > Built for x86_64-pc-linux-gnu
> > 
> > It's Debian's Version: 4.1-9.1
> 
> $ make --version
> GNU Make 4.2.1
> Built for x86_64-redhat-linux-gnu
> 
> The one from Fedora 27.

Huh.  I just tried 4.2.1-1.1 from Debian unstable and that doesn't
produce the problem either.  I'm not sure how to proceed at this point.
I'm really not a makefile expert.