GNU bug report logs - #21941
ld-wrapper incorrectly computes library search path

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: bug-guix <at> gnu.org
Subject: ld-wrapper incorrectly computes library search path
Date: Tue, 17 Nov 2015 17:43:18 +0100

Currently ‘ld-wrapper’ builds the library search path as it encounters
-L flags and uses the current search path when it encounters a -l flag.

This is contrary to what ld actually does (info "(ld) Options"):

--8<---------------cut here---------------start------------->8---
`-L SEARCHDIR'
`--library-path=SEARCHDIR'
     […] All `-L' options apply to all `-l' options,
     regardless of the order in which the options appear.
--8<---------------cut here---------------end--------------->8---

This turns out to be fine when using GCC but manifests itself when using
Clang, because Clang passes the -L flags that correspond to
‘LIBRARY_PATH’ after the -l flags on the ‘ld’ command line.

Ludo’.

Message #10 received at 21941-done <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: 21941-done <at> debbugs.gnu.org
Subject: Re: bug#21941: ld-wrapper incorrectly computes library search path
Date: Sat, 28 Nov 2015 22:12:28 +0100

ludo <at> gnu.org (Ludovic Courtès) skribis:

> Currently ‘ld-wrapper’ builds the library search path as it encounters
> -L flags and uses the current search path when it encounters a -l flag.
>
> This is contrary to what ld actually does (info "(ld) Options"):
>
> `-L SEARCHDIR'
> `--library-path=SEARCHDIR'
>      […] All `-L' options apply to all `-l' options,
>      regardless of the order in which the options appear.

Fixed in e946b609.

Ludo’.

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