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From: "Elliott, Robert (Persistent Memory)" <elliott@hpe.com>
Subject: RE: [PATCH 1/4] pmemblk, dev-dax: load libpmem and libpmemblk at
 startup
Date: Wed, 4 Jan 2017 23:48:32 +0000
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 <20170104065453.15106-2-elliott@hpe.com>
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> -----Original Message-----
> From: Elliott, Robert (Persistent Memory)
> Sent: Wednesday, January 04, 2017 12:55 AM
> Subject: [PATCH 1/4] pmemblk, dev-dax: load libpmem and libpmemblk at
> startup
> 
...
> diff --git a/configure b/configure
> index fc15782..ca69052 100755
> --- a/configure
> +++ b/configure
> @@ -1573,11 +1573,12 @@ int main(int argc, char **argv)
>  {
>    int rc;
>    rc = pmem_is_pmem(0, 0);
> -  return 0;
> +  return rc;

That change should not be applied - the return code is irrelevant
on the compiling machine (0 is the expected result since the len
being checked is zero). This is just used to check if a program
making that function call compiles or not.