From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: (dynamic-link "libm") doesn't work on guile
Date: Fri, 08 Jan 2016 11:07:38 +0100
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To: =?utf-8?B?5a6L5paH5q2m?= <iyzsong@member.fsf.org>
Cc: help-guix@gnu.org, Alex Vong <alexvong1995@gmail.com>

iyzsong@member.fsf.org (=E5=AE=8B=E6=96=87=E6=AD=A6) skribis:

> The `dynamic-link` will search and dlopen the shared library.  The guile
> from guix doesn=E2=80=99t search common places like =E2=80=98/usr/lib=E2=
=80=99, so you need to
> set the environment variable `LD_LIBRARY_PATH` or `LTDL_LIBRARY_PATH`
> explicitly to the directory contains `libm.so`.

=E2=80=98LTDL_LIBRARY_PATH=E2=80=99 is safer in that it only affects softwa=
re that uses
libltdl=E2=80=99s dlopen facility.

> by the way, since guile is linked with libm.so, we can just use
> `(dynamic-link)` here.

Yup!

Ludo=E2=80=99.