Programming :: Linking To XInput2.h Fails?

Oct 5, 2010

I have a really simple program trying to use XInput2.h, which fails on linking

Code:
#include <X11/extensions/XInput2.h>
int main(){
Display *XSession = XOpenDisplay(NULL);
int OriginScreen = 0;
int pID = 7;

[Code]....

I'm at a loss about what to do. Replacing XIWarpPointer by XWarpPointer and removing the pID argument solves it, but is not an option (no input ID).

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Programming :: Static Linking Versus Dynamic Linking

Apr 18, 2010

I have written an OpenGL based program which uses i.a. libjpeg that I want to link statically so I can send it to someone who doesn't have all the libraries needed installed to allow for a dynamically linked executable to run. As such I tried with giving the [b]-static[b] parameter to gcc.

Code:

x86_1$ make
gcc -O3 -c jpegloader.c
gcc --std=c99 -O3 -c --std=c99 -I/usr/include -L/usr/X11R6/lib main.c

[code].....

Why would gcc claim that I'm missing GLUT? This works perfectly fine when I do dynamic linking -- i.e. omitting the -static argument.

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Programming :: Linking The Assembly And C?

Apr 29, 2010

I have a C code and assembly (nasm) code and I am not able to find how to link them each other. Here are the codes :
NASM side:

Code:

global_maxofthree
section .text
_maxofthree:

[code]....

I am using ubuntu 9.10 and my NASM version 2.05.01 compiled on Nov 5 2008.

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Programming :: C++Linking Classes/.cpp Files To Run One After Other?

Apr 11, 2010

This is probably a really stupid thing to ask considering the development I'm doing (effectivly creating a virus scanner), but how do I link classes/cpp files?I have 3 applications/sections that I can compile/combine with a makefile, that's fine, but I need them to run 1, 2, 3 once the output from the makefile is done.Currently the only section to actually run is whichever I have "main" in and obviously if I put that into all three, they won't compile as one.I've been looking all over the place at all sorts, header files and such, but there is no mention of how toually do this although I'm sure it must be possible. I'm used to being able to do this in Java and I'm sure I've seen C++ applications do it, but not worked out how.I have 3x .cpp files which are combined into one using a makefile:

Code:
# Virus Scanner
scanner.out : ProgramList.o MD5Hash.o HazardCheck.o

[code]...

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Programming :: GCC Static Linking Error ?

Jun 10, 2010

There's a problem with static linking (and no problems with dynamic linking).

Here's my code:

Quote:

And makefile rule:

Quote:

That's dynamic linking. And it works perfectly. If i use static linking

Quote:

There is an undefined reference error:

Quote:

As nm shows there's a symbol named BuzzerInit in static library.

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Programming :: Linking Options For Python?

Dec 11, 2010

I am trying to build an application that must link with python so as to load a python module during runtime.I have this makefile :

Code:
[alex@iskandhar src]$ cat Makefile
CFLAGS = -Wall -O3 -I ../../../SPOOLES.2.2 -DARCH="Linux" -DSPOOLES -DARPACK

[code]....

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Programming :: Undefined Reference To Function While Linking

May 27, 2010

I am trying to add some function to the c++ project (calling function) and the called function are in C. And i am getting error "undefined reference to "Hello(int,int)" " while linking. It is compiling correctly. It is linking to header file mention in the calling function. This header file has definition to the c - called function. Do you thinking having c files into C++ project will be a problem? Should I remove <stdio.h> in c files?

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Programming :: Shared Objects - Mapping And Linking?

Oct 28, 2010

I have a question about shared objects and when mapping and linking is established in the following code...Well more of a verification.

getsetx.c - shared object source code Code: unsigned long x = 0;

unsigned long getx(void)
{
return x;
}
[Code].....

Now its my understanding when I execute ./testit, getsetx.so will get mapped into its address space at start up and testit will link any functions as they are needed..

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Programming :: Compiling And Linking Multiple Files Using Gcc?

Mar 13, 2011

compiling and linking using gcc: What does a file name with a suffix '.a' represent? If I have multiple .c and .h files, how can I link them together? How can I create the .a file?

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Programming :: G++ Linking Error With Multiple Libs

Jan 9, 2011

I tried to link my executable program with 2 static libraries using g++. The 2 static libraries have the same function name. I'm expecting a "multiple definition" linking error from the linker, but I did not received.

Code:

//staticLibA.h
#ifndef _STATIC_LIBA_HEADER
#define _STATIC_LIBA_HEADER
int hello(void);

[code]....

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Programming :: SDL + Eclipse + CDT Compiling But Not Linking With G++ On Arch?

Jan 22, 2011

I have set up Eclipse + CDT on an Arch 2010.05 install. I set up an eclipse project and added SDL as a dependency (see below):

Project -> Properties
* -> GCC C++ Compiler -> Preprocessor -> main=SDL_main
* -> GCC C++ Linker -> Libraries -> SDLmain SDL (in that order top to bottom)
* -> GCC C++ Linker -> Libraries -> Library Search Path -> /usr/lib/ (I verified that libSDL.a and libSDLmain.a are there)

This is the code I'm compiling. It's designed to just be a hello world style SDL app to see that everything is working.

[Code]...

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Programming :: Library Linking - ELF File OS ABI Invalid Error

May 6, 2010

[root@shankar-lx src1]# make
gcc -c main.c
gcc -c database.c
gcc -c e_sqlite.c
gcc -o TEST main.o database.o e_sqlite.o /usr/local/lib/libsqlite3.so.0.8.6 -w -lpthread
[root@shankar-lx src1]# ./TEST
./TEST: error while loading shared libraries: /usr/lib/libsqlite3.so.0: ELF file OS ABI invalid

My application compiled well but when try to run, it is giving ELF file OS ABI invalid ERROR. What is this error.
Kernel version is 2.4-18

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Programming :: Linking Application To Open Source Libraries

Feb 10, 2011

I would like to ask you something about open-source and linux. Is it possible to make a commercial application for linux and sell it compiling it with linking to open-source libraries without altering them and consequently without allowing download of the source code and without making the application itself free?

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Programming :: Undefined Symbols When Linking A With Main O Files

Feb 17, 2010

I am using Centos 5.4 with gcc v4.1.2. If I take a bunch of .o files and I then link with my main.o to form an executable then this links and executes just fine. If however, I try to create an archive file (.a) using 'ar rus xxx.o yyy.o etc' and then try to link the resulting .a with my main.o then I get 'undefined symbol' linker errors and I don't understand why.

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Programming :: Linking And Compiling Multiple C++ Files Into One Executable Program?

Dec 17, 2009

I have 3 c++ files, classdef.h (header file with class definition), methods.cpp (class methods) and program.cpp - the program itself. Both .cpp files have

Code:

#include "classdef.h"

in files. How I can link the files together and compile them in one executable program? I am using Geany IDE for coding.

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Programming :: Linking Of Fortran Executable Taking Exorbitant Amounts Of Time?

Mar 24, 2010

The issue I am currently facing is more of an annoyance / curiosity, and it may not even be a problem, but it sure feels like one. Background: I am becoming a computational chemist (grad school begins in the fall) and the code I run is all in fortran. I am currently compiling with gfortran. When I compile the code (on a box running ubuntu server), everything appears to compile fine, but the linking stage is taking five to ten minutes. I ran the time command while making it and got the following results.

Quote:

time make
gfortran -c -O3 -fomit-frame-pointer -finline-functions -ffast-math suijtab.f
Linking testCompile ...
done

[code]...

I just don't understand why it is taking 5 minutes of real time if it only takes 10 - 15 sec of system time?

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Programming :: Linking Object Files With Geany On Ubuntu - Undefined Reference To Class::functionName

Mar 9, 2009

I have created a simple test class - Mortgage, with the class declaration in the .h file and the class's methods defined in the .cpp file. (mortgage.h && mortgage.cpp, respectively) Straight up C++ 101 as far as I can tell. I instantiate the class in the main() function, which is defined in practice.cpp. Using Geany on Ubuntu, both the practice.o and mortgage.o files are created, but then I get a linker error: undefined reference to class::functionName

I get it for each function. If the mortgage.cpp file is foremost in the editor when I click "build", then I get the undefined reference to main() error, if practice.cpp is foremost (where the main() function is) then I get undefined reference to Mortgage::Mortgage(), and all the rest of the functions defined for that class. How do I get the linker to know where my object files are so it will link them in? Or is the problem somewhere else entirely?

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Programming :: "Unresolved Reference" Error While Doing Dynamic Linking Of C++ (shared Object)

Apr 13, 2011

I am creating two shared libs that i intend to be dynamically linkable in C and C++, cross platform Linux/Windows/Mac. As a basic sketch, true for both libs, the lib code is in several .c/.cpp and .h files. For now, I'll talk about the part that I am actively working on, a lib named Discover, i.e. libdiscover.so.1.0. First, everything is in a namespace, RemKon_Discover.

The main Discover.cpp defines the methods for the Discover class (declared in Discover.h) and has extern "C' routines that can return pointers to my main c++ object. The call to GetLibraryMainPointer() creates a Discover class object, theMainObject (ok, I win a prize for dumb names) and returns the (non-mangled) pointer to the caller over in my test program. The Discover class itself is declared extern "c" and the tester program #includes "Discover.h".

In the test program, dlopen() correctly opens the lib and dlsym() gets the pointer to theMainObject. However, when I use that pointer in the tester program to access a method (aDiscoverObject->hello(), e.g.) I get compile time errors saying that Discover::hello() in an undefined reference. My makefile is attached.

[Code]....

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Programming :: Modprobe Fails In Script / What To Do?

Jun 15, 2011

I am running into a problem with a script I have to load the proper ethernet drivers on the script start, but the modprobe command fails.

I don't know exactly what it says but I believe it was something to the effect of "cannot find (x)." Which would be fine if it did it all of the time, but if I ctrl+c out of the script and attempt to do the command manually it works.

Anyone out there know what might be going on? I've been searching google and stackoverload and here and haven't come across anyone else having this issue.

Or better yet, is there a way to have a shell script implement a .rules file for a specific instance?

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Programming :: Script Inside Another Fails To Run / Why Is So?

Feb 2, 2010

I am developing a script for the first time.

I am calling a script B.sh from A.sh
What if B.sh fails to run...how to go about it...

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Programming :: C Preprocessor Fails Sanity Check?

Jan 31, 2010

Recently, every time I try to compile an app from its source code, after issuing the ./configure command I get this message:configure: error: C preprocessor "/lib/cpp" fails sanity checkSee `config.log' for more details.I check /lib/cpp but there is not directory named /cpp under /libthis problem occurs on all source packages.

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Programming :: G++ Fails Compiling New Program / Make It Possible?

Jul 16, 2009

I am trying to compile systemc. Configuration is done OK and Makefiles are created. As soon as the "make" command i issue, recursively reaches the "utils" directory, errors are produced -declaration and include errors.

The files referenced by the errors DO exist and i hava managed to give g++ "-I ${LD_INCLUDE_PATH}, ie the variable, where all header dirs are listed. Libraries and compilers for gcc3.3 and g++3.3, i believe, are installed OK. code...

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Programming :: Malloc Fails To Allocate Memory

May 7, 2011

I am developing a code where I need to store the planes of an object in a tree & also i need to store it in a list for further processing ... when I try to allocate using malloc the memory allocation when i checked this in internet , I came to know that it may because the memory that I am trying to allocate may be more than the size_t variable.

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Programming :: Perl Module Installation Fails

Jan 12, 2011

Using perl -MCPAN -e shell then install Mail::Message then yes to everything (except the test that needed an IMAP server) resulted in.

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Programming :: G++ Fails On Multiple Files If There's A Template Involved

Aug 12, 2010

If I remove all the template stuff, it works.

whats going on here?

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Programming :: Bash If *sometimes* Fails To Detect Embedded Newline

May 21, 2011

Using xsel I pass a selection into a variable. I then check that the variable includes an embedded newline to be sure that the selection returned by xsel is complete. If the selection content preceding the newline is just a single word, the check fails to detect the newline, thus

Code:

g fnm=`xsel`
g cat <<< "$fnm"
Whatis
apropos sear

[code]....

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Programming :: C Code Fails On Repeatedly Opening /proc?

Jan 16, 2010

I am trying to run my code repeatedly in a loop about 50 times for timing measurement. I have C code running on ubuntu 8 on a single processor, Intel x86. My code is something like this

Code:
for (loop =0;loop<=50;loop++)
{
// other operations
pDir = opendir("/proc");
while (pDir == NULL)

[Code]...

After about 28-29 times the loop stops executing. I initially had a return -1 if I got pDir == NULL. That caused my program to exit, and I dont want that. Any clues on why this happens, and how I can circumvent this?

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Programming :: Synchronization Between Threads Fails - Resource Unavailable

May 6, 2009

I am working with a C++ program consisting of two threads. The first threads receives packets through an UDP unicast connection and stores them in a buffer. The second thread reads the packets from the buffer and sends them through an UDP multicast connection. Both use blocking sockets and share a common buffer and a linked list L1, which are protected by mutexes. The program seemed to work just fine, receiving a packet and sending it almost immediately, but started giving some trouble recently. The synchronization between both thread started failing, and I decided to use a non-blocking socket in the sending thread. As a consequence, sendto() doesn't work in some cases, causing an errno 11 (Resource unavailable).

[Code] ...

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Programming :: CSS Formatted Textarea Fails W/ Transparent Background?

Mar 19, 2011

I have a textarea in an html form, formatted with css. It works fine but when I use a transparent background the viewer can only activate the cursor by clicking the left or upper edge of the textarea (I should specify this only occurs in IE; it works fine in Firefox).

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Programming :: Python: Commands.getoutput (command) Fails

May 26, 2010

I've writte a small Munin plugin using python, which basically runs a shell command, and write the output to a file. For some reason the script fail quite often, and it seems to be failing at the "commands.getoutput" statement. This is what's leading up to that statement:

[Code]..

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