Re: Finding the dump

[Paul Eggert]

On 1/28/19 11:03 AM, Richard Stallman wrote:
> It is ok to use the directory part of argv[0] to find associated files
> for a non-installed program.
>
> I will clarify the text about that.

When doing that, please consider the scenario where argv[0] does not 
have a directory part (i.e., does not have a '/' in POSIX). In this case 
in the past it has been reasonably common for argv[0] to not identify 
the executable that would be found by searching PATH for a file with 
that name, either because PATH itself has changed since the parent did 
the search, or because the program is being executed in a chrooted jail, 
or for some other reason. If this usage need not be supported by GNU 
programs it would be helpful to have that clearly stated.