From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergei Trofimovich <slyfox@inbox.ru>
Subject: Re: [PATCH] gnu: Add LDFLAGS=-lpthread to configure-flags where
	needed.
Date: Tue, 21 Mar 2017 09:09:28 +0000
Message-ID: <20170321090928.02b12da9@sf>
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To: John Darrington <john@darrington.wattle.id.au>
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On Tue, 21 Mar 2017 02:22:11 +0100
John Darrington <john@darrington.wattle.id.au> wrote:

> --- a/gnu/packages/image.scm
> +++ b/gnu/packages/image.scm
> @@ -80,6 +80,8 @@
>              (sha256
>               (base32 "0ylgyx93hnk38haqrh8prd3ax5ngzwvjqw5cxw7p9nxmwsfyrl=
yq"))))
>     (build-system gnu-build-system)
> +   (arguments
> +    `(#:configure-flags '("LDFLAGS=3D-lpthread")))

That's libpng-1.6.28, right? I've tried to reproduce the failure on current
'core-updates' master (x86_64-linux). It builds just fine:

$ git describe
v0.12.0-2306-gf826c8c7e

$ ./pre-inst-env guix build libpng --check --no-grafts -K
/gnu/store/vis7x2j2lsmwbl5m5w794c23ysqah8xh-libpng-1.6.28

At a glance source code of libpng and it's tests does not contain any pthre=
ad calls.

Do you have a build log with the failure? I wonder where missing symbols co=
me from.

--=20

  Sergei

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