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Old 06-23-2009, 10:43 PM   #1
niels.horn
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Registered: Mar 2007
Location: Rio de Janeiro - Brazil
Distribution: Slackware64-current
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Question Location of libraries in /usr/lib/ or /usr/lib64/ in Slackware64


Today I was adapting several SlackBuild scripts to test some applications in Slackware64.

I understood from several threads and articles that in 64-bit Linux distributions that the libraries should go in /lib64 or /usr/lib64

Now I noticed that some Slackware64 packages still put files in /usr/lib/ like:
Code:
- cdrtools-2.01.01a57-x86_64-3: /usr/lib/siconv/*
- crda-1.0.1-x86_64-2:          /usr/lib/crda/regulatory.bin
- rpm-4.7.0-x86_64-2:           /usr/lib/rpm/*
- syslinux-3.52-x86_64-1:       /usr/lib/syslinux/* 
- trn-3.6-x86_64-2:             /usr/lib/trn/*
Are these files in /usr/lib/ for some compatibility reason or has this simply passed unnoticed while recompiling packages for Slackware64?

Is there any *problem* in leaving files in /usr/lib/ instead of /usr/lib64/ ?
Apparently it works - in these packages and in several I compiled without changing the lib folder to lib64 ...
 
Old 06-24-2009, 03:01 AM   #2
Alien Bob
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The files you find in lib/ directories are either scripts or firmwares, that can be used by 64bit as well as 32bit programs. The files in lib64/ directories are meant to be used exclusively by 64bit binaries.

When you compile a 64bit program but install the libraries into a lib/ directory, your program will run just fine. You will only run into problems when you want other programs to link against your application's shared libraries. They will not be found (because your program's pkg-config files will go into /usr/lib/pkgconfig for instance).

Eric
 
Old 06-24-2009, 04:25 AM   #3
niels.horn
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Registered: Mar 2007
Location: Rio de Janeiro - Brazil
Distribution: Slackware64-current
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Ah ok... Things are clearing up for me now!

The dark side is not clouding things for me anymore
 
  


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