[Buildroot] Bug in RPATH fixing logic

[Wolfgang Grandegger]

Am 12.11.2017 um 20:04 schrieb Wolfgang Grandegger:
> Am 12.11.2017 um 19:03 schrieb Peter Korsgaard:
>>>>>>> "Thomas" == Thomas Petazzoni 
>>>>>>> <thomas.petazzoni at free-electrons.com> writes:
>>
>>   > Hello,
>>   > On Sun, 12 Nov 2017 18:15:12 +0100, Peter Korsgaard wrote:
>>
>>   >> > So this happens because the ARC binutils version is fetched 
>> from Git,
>>   >> > so we need to have host-flex installed, and binutils detects 
>> the flex
>>   >> > library and decides to use it.
>>   >>
>>   >> And there is no configure flag to disable that?
>>
>>   > Not that I can see.
>>
>> Ok.
>>
>>   >> Is there a way to get binutils to use soft links instead of hard 
>> links?
>>
>>   > How would this solve the problem?
>>
>> Well, the problem is that the binary gets processed twice in different
>> directories because of the hard link, so if it instead was a softlink it
>> woud get ignored by the RPATH logic and only get fixed up once - Right?
> 
> Yes, soft links are ignored (only find -type f). $ORIGIN will not work 
> with hard-linked binary files in different levels of the file hierarchy. 

Well, adding a proper $ORIGIN/... for each link to the RPATH would work 
but detecting if other hard links exist is a bit tricky and would take 
time. If the references count (number of hardlinks to a particular 
inode) is greater than 1, we could process them in a special way. Not 
sure if it's worth the effort.

Wolfgang.