Time to put ${PTHREAD_LIBS} in the x11/xscreensaver-gnome?

[Alexander Nedotsukov]

Joe Marcus Clarke wrote:

>On Thu, 2004-03-25 at 23:42, Alexander Nedotsukov wrote:
>  
>
>>Jeremy Messenger wrote:
>>
>>    
>>
>>>On Thu, 25 Mar 2004 23:46:28 +0900, Alexander Nedotsukov 
>>><bland at FreeBSD.org> wrote:
>>>
>>><snip>
>>>
>>>      
>>>
>>>>Well to be constructive can people (not only once who currently
>>>>expirince a problem with xscreensaver) try the patch attached and report
>>>>two things is: it works and what is your GL library Nvidia/Mesa?
>>>>        
>>>>
>>>I tried this patch and it doesn't fix the crash. Here using Nvidia 
>>>driver.
>>>      
>>>
>>Jeremy, I looked into your ldd output and it same to mine. There is no 
>>any single object linked against libc_r, libthr, libkse or libpthread. 
>>Can this be world + kernel problem?
>>About the patch. Its purpose not link GL hacks against libpthread. They 
>>don't use any pthreads api so why we need this?
>>    
>>
>
>The problem isn't with the -demo binary, but with the hacks that the
>binary loads.  On my -CURRENT system, libGL is linked to libpthread, and
>so are my GL-based hacks:
>  
>
/me confused and feels like missed something important...
Wich crash we talking about than? xscreensaver-demo use fork() & exec() 
for hack preview. GL hack crash should not affect xscreensaver-demo. If 
I remove libmapping for GL hacks they start coredump but  still have no 
problem with selecting/previewing/using another non-GL hack.

I was always thinking about this:

hilton>$ xscreensaver-demo
xscreensaver-demo: 12:32:45: error closing "/usr/home/stephenh/.xscreensav
er": Bad file descriptor
xscreensaver-demo: too early for dialog?
Fatal error 'Unable to read from thread kernel pipe' at line 1100 in file
 /usr/src/lib/libc_r/uthread/uthread_kern.c (errno = 0)
Abort trap (core dumped)
hilton>$


Jeremy, can you try let's say /usr/X11R6/bin/xscreensaver-hacks/glmatrix 
from cli?

>ldd /usr/X11R6/bin/xscreensaver-hacks/glplanet
>glplanet:
>  
>
...

>        libintl.so.6 => /usr/local/lib/libintl.so.6 (0x2857b000)
>        libstdc++.so.4 => /usr/lib/libstdc++.so.4 (0x28584000)
>
>I bet if you rebuilt xscreensaver without GL support, it would work
>fine.  I think adding PTHREAD_LIBS to the build may be the obly way to
>fix this for libpthread users.
>
Ideally if libmap works correct they (libc_r users) should not see any 
difference. My problem is I still do not understand what we going to 
fix. I feel like something but not xscreensaver problem.

>  
>Of course, as a test, you might try libmapping libthread to libc_r, and
>see if you can reproduce this, Alexander.  I can try the same thing.  I
>know I can.
>  
>
This is what I doing all the time to let GL hacks play. I will try to 
switch back to stock nv driver and MesaGL library later today the only 
combination I did not test.

All the best,
Alexander.

>Joe
>
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>