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
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I have made a very simple program in SDL that draws one image four times on a window.However I wanted it to be statically linked so the end user wouldn't have to install SDL and SDL-image in order to get the program working.
View 3 Replies View RelatedI'm trying to link 'aubio' (a lib) and its failing on one of ts dep's with this error.
Code:
$ make
Making all in src
make[1]: Entering directory `/home/John/Externals/aubio/aubio-0.3.2/src'
make all-am
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"Warning: This system can not link to static lib archive /usr/local/lib/libff"
I've configured/make/make installed fftw and its doing just fine in the usr/lib folder, so I'm at a loss at how to fix this. Do I need to build fftw again using some kind of shared make switch? I couldn't find any referance about that.
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?
View 3 Replies View RelatedI'm trying to link the MySQL libraries to some C code, the LambdaMOO server to be exact. I'm getting the following error:
gcc -g -O -L/usr/lib/mysql -lmysqld -I/usr/include/mysql ast.o code_gen.o db_lo
ad.o db_flush.o db_objects.o db_properties.o db_verbs.o decompile.o disassemble.
o eval_env.o eval_vm.o exceptions.o execute.o extensions.o functions.o keywords.
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You can see the link commands I'm using, and the lib and include path are both valid. I tried replacing -lmysqld with -lmysqlclient but this did not help. I'm using Debian and MySQL, libmysqld-dev and libmysqlclient-dev are all installed.
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?
what are libraries and what is the diff between static and dynamice libraries.
View 1 Replies View RelatedI've been trying to use the library boost/thread.hpp but I cant get it to link. Every time I try it looks like this:
Code:
tyler@TjLaptop01:~/Desktop$ g++ thing.CPP -o Desktop -lboost_thread
/usr/bin/ld: cannot find -lboost_thread
collect2: ld returned 1 exit status
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!
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?
View 2 Replies View Relatedi 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.....?
When performing rpm -Uvh, my rpm is not able to link the shared library. My rpm use shared libraries which are created by my software. when i do rpm -ivh everything is working fine My rpm creates the softlinks to the shared libraries. Now when i install the rpm using -Uvh switch which upgrade..the shared libraries are not loading.
View 1 Replies View RelatedI'm trying to compile libetpan-0.57 on RedHat Enterprise Linux 5.2 64-bit and it is refusing to link against the 64 bit system libraries. I've tried everything I can think of. I've tried to hack libtool, run the command make was trying to run manually and changing the library search paths but nothing works. When I run the command make tried to run manually and change -L/usr/lib to -L/usr/lib64 most of the "skipping incompatible" library messages disappear except for "/usr/lib/libexpat.so: could not read symbols: File in wrong format." Below is the output when I run make code...
View 4 Replies View RelatedI'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]....
I am having some trouble when I try to link my custom libraries to target executables. There are two libraries
liba
libb
and an executable exec based on main.o The library libb has some reference to liba. Now if I put the libraries in same directories, I can compile the code as g++ -o exec main.o liba.a libb.a But, if I put the libraries in different directories, say d1 and d2, and use the command as g++ -o exec main.o d1/liba.a d2/libb.a I get an error as undefined reference to some function in liba. I am not sure if I am missing some thing in linking process. Also, if libb doesnot refer any functions in liba, there is no error in either of the case.
In mandriva 2008 platform I have installed gcc-g77, liblapack, liblapack-devel, libblas, libblas-devel, arpack, arpack-devel and arpack-static packages. When I link *.f code and these libraries, using g77 compiler with -llapack -lblas -larpack options, everything work. Then when I replaced g77 by gfortran compiler, to be able to work with double precision complex arithmetic, I have got a number of undefined references errors:
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It looks as if I need to install f95 lapack and arpack libraries. Does anybody know if such rpm packages exist? I cannot find them in the net. If they exist, where is it possible to download them?
In the ordering of files I keep I need links to directories. Sometimes I even need to move directories to new locations. I have tried using symlinks, but they become dead when I move the directory they point to. I have tried hard links, but I haven't found any Linux file system that would support hard linked directories. How can I achieve that a complex structure of directories (currently with symlinks for directories and hard links for files) keep symlinks live when directories are moved?
- is there any utility that updates symlinks when a directory is moved?
- is there any Linux filesystem that supports hard linked directories?
- is there any good Linux interface to the new NTFS (the only file system I know to support automatically updating directory links, called directory junctions)?
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?
View 11 Replies View RelatedIm doing a project,in which i have to add a script in c++ inorder to merge two or pdf files page by page or based on some headindgs.SO anyone can please suggest me any open source pdf libraries in c++ which provide functions for merging and splitting.
View 3 Replies View RelatedI am learning C++ and wish to include some Boost functions in my code. My machine is running Debian Linux with the pre-installed boost binarys.I have a couple of questions:How do I include the library in my C++ code as there are no cpp or h files only binary files (eg /usr/lib/libboost_regex-d.so and /usr/lib/libboost_regex-d.a)How do I comile the code. I am using DialogBlocks for creating forms using wxwidgets. The editor also compiles the code using the gcc compiler. Do I have to give an instruction to the compiler saying which file is requried and where to find it? If so, any ideas how this is done?
View 4 Replies View RelatedSo I decided to take my first steps into programming with C + gtk. So far I have doneI loaded eclipse and ensured I had the cdt package Created a new C/C++ project called "play" Added a new source file called "Playfullsrc.c" Added the following to paths and symbols (output of the command: pkg-config --cflags gtk+-2.0)
Code:
/usr/include/gtk-2.0
/usr/lib/gtk-2.0/include
/usr/include/atk-1.0
/usr/include/cairo
/usr/include/pango-1.0
/usr/include/pixman-1
/usr/include/freetype2
[Code]....
added "/usr/lib/libgtk-x11-2.0.so" to GCC C Linker Libaries (I have cheacked and this file exists) When I build the project I get the error message "cannot find -l/usr/lib/libgtk-x11-2.0.soplayline 0C/C++ Problem" I have been following this tutorial: [URL]
I have 2 questions... I couldn't find answers by Googling (more precisely, by Blackling) and in GCC documents, so I'm asking here.
1. There are 2 flags for position independent code, -fpic and -fPIC. All the examples I read use -fPIC... so when is -fpic useful and what is the difference?
2. Some tutorials use "g++ -shared" while others use "ld" for the creation of the shared library. Why? Does it matter which method I use? Is there a difference? Why does nobody mention both options?
I've been trying for days now to build my first FastCGI application using gcc.
This is the output:
Code:
I believe I wouldn't have to refer to the lib path, but I added the -L flag to be sure.
The directory /usr/lib includes (among others) these files:
Code:
I have tried to follow these instructions. The files in the tar.gz archive provided by FastCGI.com no longer corresponds to the instructions there, but I was still able to run the ./configure and make commands so I believe FastCGI is installed.
But why can not the library be properly linked to? Really hope you can help me out on this one!
Just what it says in the title.
I can work in a 32-bit VirtualBox VM, but it's very inconvenient and I would rather work in my 64-bit desktop if that's not too difficult.
These are all the lib32 packages I have installed code...
This post isn't really asking for a tutorial, but rather asking for some ideas. I've come up with a few ideas, but they seem cumbersome and unnecessary, so I was wondering if someone with more experience than me could out. Also, my explanations suck, but I'll try to do my best. So say I have an executable called X. At some point during its execution, X loads and uses (using dlopen and dlsym) a library called Y. In Y, there a bunch of functions that call the function called, for example, void *special_malloc (size_t). These functions come from another linked library (linked during compilation) called Z. Problem is, special_malloc contains some static variables within its scope, and when those variables are reset midway through a program, an invalid free occurs (special_malloc uses garbage collection). Now, what I want to happen is that whenever lib Z calls special_malloc, it instead calls the special_malloc defined in the executable X, so that these static variables are retained. Keep in mind that I have control of the Z library, meaning I can edit the source to fit my needs.
View 2 Replies View RelatedI'm using debian and, though i'm new to c++, i'm writing a program using it which needs some HTTPs functionalities . I found these libcurl libraries could help me but I haven been able to use them from my program. I installed them (power trio configure -make -make install ) but i guess i'm doing something wrong ... i feel like i should copy or link them somehow in my project (besides the include sentences in my code). I hope you could give me a hand with this im quite lost
View 9 Replies View RelatedI am using the API libpcap in order to filter the traffic of the port 53 from my PC ro other PCs, in other words the DNS traffic.I want to get more information about the DNS traffic that is being sent to the DNS server, in other words the queries. So far I have no idea how to read the information data or payload of the UDP package in order to read the content of the traffic for example if there is any PTR, A, MX, etc Resource Record.According to the RFC 1053 there is a header that is possible to use in order to easily get this info.
View 5 Replies View RelatedAny good tutorial on sharing dynamically allocated objects across shared libraries in the same process and between shared libaries and main(). In particular, I need to know what creation and destruction sequences are valid when libraries are being loaded and unloaded. For example, is it valid to allocate an object from inside a shared library procedure, and then delete that pointer from a different module, especially in the case where the allocating module has already been unloaded.
I imagine there might be all kinds of problems with this. Although my preliminary tests seem to work most of the time, I get crashes from time to time, but I'm not sure if they're caused by memory management or by threading issues. I've been restructuring my code to use a global context object to manage object creation and destruction from main(), but I'd like to find a clear exposition of the specific issues I'm dealing with before I go too much further.
I have been a predominant Windows user for a long time but shifted to Ubuntu recently. I was just trying out a few basic C functions when i realized that the "conio.h" header file isn't included in the libraries and therefore i was unable to use the "clrscr()" function.
I downloaded a tarball which contained the necessary library and header files including conio.h. Once extracted, i specified the location and included in the program as " #include "path to the header file" ".
I still didn't call the "clrscr()" function, and it compiled successfully. Next i edited the program to call that function and it gave the following error...
How i can add new libraries in the future?
Since I read that executing a library could return its version number, I ran "/lib/libc.so.0" on uClinux, but it triggers an error.I'm told that random libraries are not directly executable. Does someone know what a random library is?PS: In case that matters, here's the short version of the error:
Code:
Undefined instruction
<5> - May be used to emulate instructions that are not defined for
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