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List:       kde-devel
Subject:    Re: BlueCurve installation
From:       James Richard Tyrer <tyrerj () acm ! org>
Date:       2002-11-03 7:22:21
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Thiago Macieira wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> James Richard Tyrer wrote:
> 
>>Allan Sandfeld Jensen wrote:
>>
>>>On Saturday 02 November 2002 01:36, James Richard Tyrer wrote:
>>>
>>>>I just don't quite understand this:
>>>>
>>>>[root@localhost kde3]# pwd
>>>>/usr/kde3/lib/kde3
>>>>[root@localhost kde3]# ldd kwin_cde.so | grep kwin
>>>>        kwin.so => /usr/kde3/lib/kwin.so (0x4000c000)
>>>>[root@localhost kde3]# ldd kwin_bluecurve.so | grep kwin
>>>>        kwin.so => not found
>>>>
>>>>Obviously, I am missing something here.
>>>
>>>You are likely missing rpath, but if Bluecurve is provided binary you
>>>can't change that. Instead set LD_LIBRARY_PATH=/usr/kde3/lib. (remember to
>>>also include the path to qt)
>>
>>I wish that I really understood this stuff.
> 
> 
> The dynamic linker (ld.so) has to know where to look for shared objects. It 
> does so by reading the paths in /etc/ld.so.conf. And that's where the file 
> must lie, or they won't be found.
> 
> There are other ways of telling ld.so where to find files. One is through the 
> LD_LIBRARY_PATH environment variable and another is through an RPATH record 
> in the ELF header of the file.
> 
> Your problem is that /usr/kde3/lib isn't in your /etc/ld.so.conf and that 
> kwin_bluecurve.so doesn't have an RPATH for that, while kwin_cde.so does.
> 

Yes, "/usr/kde3/lib" is in my: "ld.so.conf" file and that is why I am 
puzzled.

Also please note:

[root@localhost kde3]# ldconfig -v | grep kwin
[root@localhost kde3]#

That is correct, nothing.  Very odd but this explains why it wasn't found.

And as you said, it isn't found through the RPATH which points to: 
"/usr/lib".

Any who, I did get it built from the SRPM and installed.

--
JRT

 
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