General :: Difference Between Static And Dynamice Libraries?

May 2, 2011

what are libraries and what is the diff between static and dynamice libraries.

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General :: Using Dynamic Libraries As Static Libraries?

May 6, 2010

Is there any way to use a dynamic libraries as a static libraries instead when compiling, so that my resulting executable won't have them as dependencies?

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General :: Wrap App With Dynamic Libraries Into One Large Static App?

Feb 24, 2011

I have an old program that kind of depends on older dynamic libraries. They tend to get upgraded easily with distro's updates. I figured that there would be a script with using ldd that would gather the libs needed and create one bigger, statically linked application that wouldn't break so easily. If I could do this, a lot of older KDE libraries could be removed from my system and easen my life.

My distribution of choice is gentoo, but I'm looking for a general solution that doesn't depend on rebuilding anything. If it runs with libs on their path, I'm sure it can be made run with libs somewhere else!

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General :: Static Versus Shared Libraries (Linking C Program With GCC)

Mar 16, 2010

I have a third party static library (libSTATIC.a) that I cannot recompile into a shared library. I want to create a shared library (libSHARED.so) that uses the C functions in the static library. Is it possible to do this? In other words, when linking a C program with gcc by using the -shared flag, is it necessary that all all libraries invoked in the program (even low level libraries such as libc for example) be available as shared libraries as well?

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General :: Difference Between Static And Dynamically Linked Library?

Aug 30, 2010

Libraries have always been ambiguous to me. I would love to have a clear understanding of them. Here's what I know so far... Ok I know that libraries are a bunch of functions and definitions in C that binaries use. I also understand that static libraries are used by the binaries in /sbin:/usr/sbin:/usr/local/sbin and dynamically linked libraries are used by the binaries in /bin:/usr/bin:/usr/local/bin So why have statically linked and dynamically linked libraries? I know that dynamically linked libraries are used to save space. Otherwise each binary would need its own private copy of a library. So dynamically libraries are used to save space.

1. Where are the static libraries and the dynamically linked libraries located in the file structure?

2. Where does ldconfig fit into all of this?

3. Would a rootkit affect both statically and dynamically linked libraries? I would think yes unless the libraries only have read permissions.

4. If the above is true, is there any reason for your libraries to have write permission other than when you want to edit them?

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Programming :: Link Static Libraries With Gcc

Oct 15, 2010

I am stuck with a problem to link static libraries with gcc. There is no problem with source files since I am able to compile in a machine where the static library is installed. I am compiling with the following: Code: :~/Emotion/pjproject-1.0.3/third_party 157% gcc -Wall -I/portaudio/include -o rec patest_record.c -L./lib -lportaudio-x86_64-unknown-linux-gnu

[Code]....

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Software :: GCC/G++ With Shared And Static Libraries

Mar 16, 2010

I have a third party static library (libSTATIC.a) that I cannot recompile into a shared library. I want to create a shared library (libSHARED.so) that uses the functions in the static library libSTATIC.a. Is it possible to do this with gcc/g++?

In other words, when linking a C program with gcc/g++ by using the -shared flag, is it necessary that all libraries invoked anywhere in the program (even low level libraries such as libc for example) be available as shared libraries as well?

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General :: Use Always The Latest Versions Of The Libraries And Don't Save The Old Libraries For Compatibility?

May 11, 2011

Why many Linux distros are trying to use always the latest versions of the libraries and don't save the old libraries for compatibility? I mean, I can see libtiff for example, i can found a libtiff.so.5 on my /usr/lib, but doesn't store a libtiff.so.4 or 3 just for binary applications or games. For this example, I need libtiff.so.4 for uplink.

That should happen too on the old version of sims for linux, some ID games or others.What's wrong with storing old libraries? PD: Yay, my first post on 3 years!

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Slackware :: Static Libraries - Why Aren't They Shipped In Official Slackware Packages

Aug 12, 2010

I noticed that the official Slackware packages don't contain static libraries. The SlackBuild scripts from slackbuilds.org or from Slackware DVD usually contain --disable-static option to prevent building the .a file. And if configure script doesn't allow such option, the .a file is deleted before the package is created.I am wondering what is the reason for that? Is it just the matter of conserving disk space? Are there also other reasons?

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Programming :: Java Non-static Variable Cannot Be Referenced From A Static Context

Feb 12, 2010

I'm having some problems on the line with ***. This is from a OpenEntidade.java class file and I'm trying to update EmprestadorView's variables.

EmprestadorView.java
public class EmprestadorView extends FrameView {
...
OpenEntidade.java
-----------------
public class OpenEntidade extends javax.swing.JFrame {

[code]....

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Networking :: Static IP Address That Has A Reverse Lookup To "myipaddress.static.lyse.net" And Not Email Domain?

Apr 26, 2010

I got this message on Friday from just one domain. uote:mailsrv.forthnet.gr #<mailsrv.forthnet.gr #5.5.0 smtp; 554 5.5.0 Your message was considered to be spam by the FORTHnet Antispamming Policy and was not delivered to the recipient. The following spam tests returned positive for this message:FORGED_RCVD_HELO,RCVD_IN_BRBL. For further information visitWe are not a spamming community but it seems we have a statice IP address that has a Reverse lookup to "myipaddress.static.lyse.net" and not my email domain. Would setting a cname mail.mydomain.no -> myipaddress.static.lyse.net cure this problem or are there more tricks to be performedOnce I have cured the FORGED_RCVD_HELO I can move to getting the IP removed from BARACUDA.

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General :: If The Libraries Are GPL Or LPGL

Jan 12, 2010

I am working on a user space application that I would like to release under the LPGL. I am linking against libraries that I'm not sure if they are GPL or LGPL. Can someone help me determine if the libraries are GPL or LPGL.

For reference I have included a snippet of my gcc command:

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General :: Add New Libraries To SuSe?

Apr 30, 2011

How do I add new libraries to SuSe Linux?

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General :: Install X11 Libraries On Red- Hat?

Nov 12, 2010

I am new to linux environment. I need to install libxt-dev ; libx11-dev ; and xorg-dev (xserver-xorg-dev)

My Red Hat Linux Enterprise version is : Linux 2.6.9-5.EL # I think the redhat is enterprise edition 3

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General :: Dealing With Locations Of Libraries

Mar 7, 2010

What can you do when your linux system "can't find" dynamically linked libraries that are indeed installed in their correct locations? Case in point, I'm trying to run a program called 'ucanvcam':

oliver@human ~/installed/ucanvcam-0.1.6/bin $ ./ucanvcam
./ucanvcam: error while loading shared libraries: libgd.so.2: cannot open shared object file: No such file or directory
oliver@human ~/installed/ucanvcam-0.1.6/bin $ locate libgd.so.2
/usr/lib64/libgd.so.2.0.0
/usr/lib64/libgd.so.2

oliver@human ~/installed/ucanvcam-0.1.6/bin $ ldd ./ucanvcam
linux-gate.so.1 => (0xf7706000)
[...]
libgd.so.2 => not found
[...]
librt.so.1 => /lib32/librt.so.1 (0xf6b1e000)

How can I tell it to look for libgd.so.2 in /usr/lib64? And more importantly, why isn't it looking there, and where is it looking?

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General :: Installing Libraries For Cygwin?

Mar 19, 2010

I want to install these libraries in cygwin, how do I do it? are all of them available on cygwin environment or only on linux?

g++ - the version 4.4
graphviz
gnuplot
plotdrop

[Code].....

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General :: Specify The Location Of Libraries To A Binary?

Sep 25, 2010

I'll be using a specific example, but really this generalizes to pretty much any binary on linux that can't seem to find its' dependent libraries. So, I have a program that won't run because of missing libraries:

./cart5: error while loading shared libraries: libcorona-1.0.2.so: cannot open shared object file: No such file or directory

ldd sheds some light on the issue:
linux-vdso.so.1 => (0x00007fff18b01000)
libcorona-1.0.2.so => not found
libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.3/libstdc++.so.6

[Code]....

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General :: Linking GPL Apps To Non-GPL Libraries

Jan 20, 2010

I have a library that I have ported from Windows, and is not a derivative work of Linux. The library is subject to copyright law, and I can't disclose the source. I would like to link a GPL application to this library, and want to know if the linking would cause the library to be GPL. If the library becomes GPL, is there some other way (kernel loadable module?) that I can keep my library from becoming a work of GPL?

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General :: How To Install And Interrogate Libraries

Mar 25, 2011

im currently working on openbts,how can i get into the configuration file..its simply written that the config file is found in ./apps directorypenbts.config.but i have an error'No such file or directory'

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General :: Ubuntu 10.04 - Linking To Lua Libraries With Codeblocks

Jun 18, 2010

After I downloaded the source for lua, I followed the install instructions, doing...

make linux install
make generic install

I've also done the make test and it passes, printing out Hello World, from Lua 5.1. However, I can't link to the lua libraries in CodeBlocks. I know where lualib.a is (usr/local/lib) which I set in my Search Directories for the linker. I still get error messages like...

undefined reference to lua_isstring

P.S. I had this running on Windows via Visual Studio.

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General :: Libraries - App Doesn't Find A .so File?

Aug 4, 2010

I have just downloaded, configure'd, make'd and make install'ed the Google Log Library to my computer. It built all required files (as far as I can see) and copied the .so file (libglog.so.0.0.0) to /usr/local/lib. Then it created two symbolic links called "libglog.so.0" and "libglog.so" that point to that shared object file:

lrwxrwxrwx 1 16 /usr/local/lib/libglog.so -> libglog.so.0.0.0
lrwxrwxrwx 1 16 /usr/local/lib/libglog.so.0 -> libglog.so.0.0.0
-rwxr-xr-x 1 498381 /usr/local/lib/libglog.so.0.0.0

Now I'm trying to execute a program that uses the library, but when I start it, I get the error message that it can't open the so-file:

cloud:/home/blam/redirector/redirector2# ./redirector ./redirector: error while loading shared libraries: libglog.so.0: cannot open shared object file: No such file or directory

/usr/local/lib is included in my /etc/ld.so.conf file, and another library that's located in this directory is loaded correctly.

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General :: What Do The Number Suffixes In Dynamic Libraries Mean

Jun 18, 2011

Here's an example:

What do the numbers after so, such as in the last line, 1.1.0 mean?

My first guess was that they are version numbers, but:

So the 1.1.0 does not seem to have any connection to the version of the library, reported to be 2.4.46.

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General :: Language Learning Software - Libraries?

Oct 28, 2010

I'm cross-posting in order to get as a wider audience to get as much feedback as possible. I am currently studying to learn the ) Gidhlig (Scottish Gaelic language and finding studying by rote out of a book a bit 'limiting'. Because of this, I am thinking about creating a software project which could act as an interactive way to helping me learn the language. I've got a few ideas floating in my head but the direction I want to take is that the software is not an alternative but an aid to be used in conjunction with traditional studying materials. I was thinking possibly small interactive games or exercises that both are fun as well as to test and use the parts of language I have learned. There might also be a bit of reporting to show strengths and weaknesses.

Firstly, the technical specifications, that offhand, I can think of that the project will need to meet:

1. Cross-platform (while I would like it to be just Linux, I have to be realistic that people would rather use Windows)

2. The language data is separate from main program so that the software can be used with other languages.

3. Not too complex so that it is quick and easy to program as I will be doing it myself.........

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General :: Executing With OpenMP On YDL 6.2 - Missing Libraries

Jun 30, 2010

I am running Yellow Dog Linux release 6.2(Pyxis) on my PS3. I would like to compile and run C programs that utilize OpenMP for parallel programming. Unfortunately, I have not been very successful. I am able to compile programs containing OpenMP statements error free, but when I attempt to execute the binaries I receive the following error: Code: ./file: error while loading shared libraries: libgomp.so.1: cannot open shared object file: No such file or directory Compiling programs without OpenMP statements works fine.

Because it has to do something with missing libraries, I am not sure if knowing the executable search paths may help in diagnosis, but when echoing the path environment variable:

[Code]...

The version of GCC on this machine, 4.1.2 20080704 (Red Hat 4.1.2-44), is identical to the ones I have on two other machines (CentOS release 5.3 (Final) and CentOS release 5.4 (Final)) and they both compile and execute OpenMP code flawlessly. I have tried building and installing another version of GCC that would possibly include the OpenMP libraries, since, according to some sources, GCC has only supported OpenMP since version 4.2. But I have not been successful with that either (that problem would make a good second thread.)

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General :: Error While Loading Shared Libraries

Jan 13, 2011

A newbie trying his hand with openldap.Disclosure: I tried posting at openldap forum, but my message does not appear in the mailing list-- and I didn't receive anything back from that forum, so please don't flame.I use red hat 5.5.I didn't want to use the openldap that is bundled with and installed by the red hat, so I downloaded and installed BerkeleyDB-4.8.30 and openldap-2.4.23.

I can see that the file libdb-4.8.so is in /usr/local/lib and /usr/local/lib is in my path (in my .bashrc).. so why not "read" it from there?How do I solve this problem?

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General :: Install The Pgplot Libraries In Machine?

Dec 13, 2010

I am trying to install the pgplot libraries in my machine (Red hat), the version of my Linux is: Linux version 2.6.9-5.EL (bhcompile@decompose.build.redhat.com) (gcc version 3.4.3 20041212 (Red Hat

3.4.3-9.EL4)) #1 Wed Jan 5 19:22:18 EST 2005
but when executing make command I have the the problem related to X11
output as follow:
Code:
gcc -c -Wall -fPIC -DPG_PPU -O -I/usr/include/ -I/usr/include /usr/local/src/pgplot/drivers/xwdriv.c
/usr/local/src/pgplot/drivers/xwdriv.c:127:21: X11/Xos.h: No such file or directory
/usr/local/src/pgplot/drivers/xwdriv.c:128:22: X11/Xlib.h: No such file or directory

[Code]...

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General :: Libraries - Binary Executable Properties : Ldd Alternative?

Mar 23, 2011

The Linux ldd command can show the dynamic libraries used by an executable. It's a bash script.But it seems to be fragile, and does not work on some binaries. Is there an alternative tool? In my specific example, I can use:

% file datab2txt

datab2txt: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, for GNU/Linux 2.4.0, not stripped

but ldd fails with:

% ldd -v datab2txt

not a dynamic executable

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General :: Which Shared Libraries Are Loaded By An Already Running Process?

Aug 18, 2011

How do I know which shared libraries are loaded by an already running process?

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General :: Ubuntu GCC Helloworld.c - Link And Set Environment For Libraries?

Sep 4, 2010

i have a helloworld.c program that I want to compile and link. i managed to compile it and link it but when i run it using:

Hello

at commant prompt it returns with error about package having a Hello and Hello_Debhelper and I use sudo.....?

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General :: Process Of Making A Distribution From Scratch ( Concerning Libraries, Etc. )?

Jun 28, 2010

I have C in a Nutshell but I'm learning Bash right now. I've gone through a lot of LFS, but didn't complete it. I'm still learning about symbolic links, hard links, libraries, and this sort of thing. I'm wondering about quite a few things at this point. How the hell can anyone make a distribution from the ground up? Even if they start with another distribution as a base, how do they know (I realize one person doesn't do all the work) what to do, what order to do it in, how to synchronize what they're doing with what everyone else is doing, etc. How do you know which software to compile and install first? etc.

Also, I'm entirely confused by this: how can everyone (even large teams) get everything working together? Knowing that this works with that and that doesn't work with this unless it's patched but that's what we're going with, etc. I can't understand how these things can be done without an almost unbelievable amount of effort unless a lot more is done by ./configure and make than I know about at this point.And I don't understand how libraries work at all. I mean, I'm going to learn a lot more and I've been reading a lot... but how can all the distributions just download and install 50 updates at a time and not have to restart the computer most of the time!? There are a hundred things happening in the background constantly. How does everything not just fall apart as soon as you update one package, let alone 50 at a time!? I realize this is stuff that you learn by reading, but I've been reading for quite a while now and I do not understand even the basics about why any of this works or how to know what works and what doesn't unless every single little piece of every distribution is gone over with a 50,000-page reference manual that's constantly updated. And all of this can't be as complex and hard to do as it seems, or there couldn't possibly be a hundred distributions that work and are updated constantly. Linux From Scratch is a good example. You have to download all the very specific versions of the software and patch it with special little patches, etc. How the hell can anyone keep track of all of this? Going by what I know about things, it's almost hard to believe that it's even done.

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