From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: How to make a working ld in guix pure environment?
Date: Thu, 24 May 2018 22:38:44 +0200
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	(Fis Trivial's message of "Thu, 24 May 2018 18:14:07 +0000")
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To: Fis Trivial <ybbs.daans@hotmail.com>
Cc: help-guix <help-guix@gnu.org>

Hello,

Fis Trivial <ybbs.daans@hotmail.com> skribis:

> I tried to use ld in guix pure environment, tested with bintuils,
> gcc-toolchain, ld-wrapper, and none of them work.
>
> Take the following trivial snippy (not opencl related) as an example:
>
> // main.c
> #include <math.h>
>
> int main()
> {
>   log1p(32);
> }
>
>
> To build it, one would do something similar to `ld -lm main.o` after
> compilation. But I got an error saying "ld: cannot find -lm".

You would need to use ld-wrapper, not ld, so that ld-wrapper sets the
RUNPATH appropriately.

But this won=E2=80=99t fix the problem above.  The problem above is that gl=
ibc
is not in the search path.  To fix that, a simple fix would be to add a
wrapper atop ld-wrapper (!) that would add =E2=80=9C-L /gnu/store/=E2=80=A6=
-glibc/lib=E2=80=9D.

Perhaps there are more elegant ways to achieve it though.  How is ld
invoked?  Would it work to add that -L flag directly in the code that
invokes ld?

HTH!

Ludo=E2=80=99.