Questions tagged [libraries]

82 questions
214
votes
10 answers

How to check if a library is installed?

In Linux, how do I check if a library is installed or not? (from the command line of course). In my specific case now, I want to check whether libjpeg is installed.
hasen
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12
votes
2 answers

finding ldd search path

How can I find the search path of ldd? Assume ldd returns [mahmood@dhcppc2 bin]$ ldd /home/mahmood/amd64-linux/lib/scsi-bus.so linux-vdso.so.1 => (0x00007fffc27c7000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007ffb13a25000) …
mahmood
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7
votes
2 answers

Puppet Packages, Puppet Forge, and good Puppet code?

Does anyone have a ranking system for the packages available from the Forge at PuppetLabs? For example, there a half dozen Apache packages. Given normal distribution, one will probably work, one will work a bit with different features, and the rest…
6
votes
3 answers

Fixing Shared PCRE Library on CentOS

This is less a question about PCRE, and more a question about updating shared libraries. The distribution of CentOS I'm running only allows for yum upgrades to version 6.6, or somewhere similar. I'm installing an issue tracker that requires PCRE…
Craig Otis
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5
votes
2 answers

fedora /usr/lib vs /usr/lib64

It seems i have two python2.6 folders located in /usr/lib vs /usr/lib64 respectively. Most python stuff (source) is in /usr/lib64/python2.6 but when in installed packages they have been put into /usr/lib/python2.6 How the system decides which…
Weiwei
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4
votes
2 answers

PSQL 64bit driver error

I have an Ubuntu 12.04 64bit server setup under Hyper-V. I have installed Pervasive 64bit SQL drivers so that a stock-updater script can run daily (Updates external MySQL database from another local server running Exchequer software / PSQL…
Alexander Holsgrove
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4
votes
1 answer

What's the best way to check the version of a library on Ubuntu

I am sure there are several ways to do this, but is there a tool built into Ubuntu or a recommended way to check the version of any given library you have installed on an ubuntu server?
wjimenez5271
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4
votes
1 answer

Windows 7 library nightmare

In our Active Directory we deploy a policy to our clients where the personal directory (My documents) is redirected to a file server of ours \\server\share\username\Documents In older systems everything worked fine. In Windows 7 some users are…
Lobuno
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3
votes
2 answers

Install xmlsec on CentOS

I installed xmlsec and it keeps giving me an error when I try to verify an XML document. yum install xmlsec1 yum install xmlsec1-openssl [vagrant@localhost SSO-ROR-development]$ xmlsec1 --verify…
Chloe
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3
votes
2 answers

Per-application library paths on CentOS

Context: After a recent version upgrade of a bunch of our server software, I've found myself in a dilemma: I have two sets of applications (Zend server and assorted utils, and a bunch of PostgreSQL management utilities) that both heavily use a…
Zac B
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2
votes
2 answers

Why the program lsusb don't find the shared library libusb-1.0.so.0?

Linux distribution : CentOS Linux release 7.4.1708 (Core) Kernel : 3.10.0-693.2.2.el7.x86_64 The problem : # lsusb lsusb: error while loading shared libraries: libusb-1.0.so.0: cannot open shared object file: No such file or directory # ldd…
Erms
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2
votes
1 answer

Does a 32-bit Linux program's entire runtime lib tree need to be 32-bit?

On my 64-bit RHEL machine, I'm compiling and running a C & Fortran program that is 32-bit only. It invokes the non-static version of a lot of standard Linux libs (X11, OpenGL/Mesa, Motif, etc...), which of course invoke other libs (libjpeg, libc,…
2
votes
1 answer

Using mozjpeg in place of jpeg-turbo including satisfying dependencies

I'm trying to use mozjpeg as a drop-in replacement library for jpeg-turbo. I'm perfectly able to fetch the sources and compile them as needed and even create a deb-file from it which I can use to install the package (e.g. apt-get install…
fvm
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2
votes
1 answer

missing shared library in ldd

I compiled Apache httpd on CentOS 6.x. Works fine there. Then I moved the binary files to CentOS 7. I needed to install some missing libraries and now works fine there. Then I moved the binary files to Archlinux. As I expected it did not started…
Nick
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2
votes
1 answer

RPM packaging conflicting libraries

What is best practice for RPM packaging something that provides a library which in name shadows a system library? Background: For an RPM-backed Linux system, I am packaging a "self-contained" app foo that wants to live under /opt and supply as many…
pilcrow
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