> Date: Thu, 16 Dec 2010 22:43:04 +0100
quoted text
> From: Stefan Sperling <stsp@openbsd.org>
> 
> $ export LD_PRELOAD='' 
> $ sed
> sed: can't load library ''
> $ env
> env: can't load library ''
> $ vim
> /usr/local/bin/vim: can't load library ''
> $ 
> 
> Is this the right way to fix it?

I'd say it works just fine without your fix.  If you really don't want
to preload stuff, make sure LD_PRELOAD isn't set at all.

quoted text
> Index: loader.c
> ===================================================================
> RCS file: /cvs/src/libexec/ld.so/loader.c,v
> retrieving revision 1.120
> diff -u -p -r1.120 loader.c
> --- loader.c	25 Oct 2010 20:34:44 -0000	1.120
> +++ loader.c	16 Dec 2010 21:40:07 -0000
> @@ -493,7 +493,7 @@ _dl_boot(const char **argv, char **envp,
>  	TAILQ_INSERT_TAIL(&_dlopened_child_list, n, next_sib);
>  	exe_obj->opencount++;
>  
> -	if (_dl_preload != NULL)
> +	if (_dl_preload != NULL && _dl_preload[0] != '__PLACEHOLDER__1_')
>  		_dl_dopreload(_dl_preload);
>  
>  	_dl_load_dep_libs(exe_obj, exe_obj->obj_flags, 1);