Integration of libssh into a Qt project

Wotan

I am doing an application to communicate with an embedded software thanks to the libssh tools.
But every time I call the lib, I have got a crash of my application. I finally decided to simplify my project at the maximum to see what is the problem by doing a simple console project but it is still crashing. So I finally come to you to see if anyone of you have an idea.

My OS is Windows 7 Professional
I am developing with QtCreator 3.2.1
My Qt Version is Qt 5.3.2

Here is my .pro file:

TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

SOURCES += main.cpp

include(deployment.pri)
qtcAddDeployment()

LIBS += -L$$PWD/LibSSH/lib -lssh.dll

And here is my main.cpp

#include <iostream>
#include "LibSSH/include/libssh/libssh.h"

using namespace std;

int main()
{
   ssh_session my_ssh_session = ssh_new();
   if (my_ssh_session == NULL)
     exit(-1);

   ssh_free(my_ssh_session);

   cout << "Hello World!" << endl;
   return 0;
}

As you can see, every time I call ssh_new() there is a crash, my console answer me :

Démarrage de I:\Projets\Test_libssh\release\Test_libssh.exe...
I:\Projets\Test_libssh\release\Test_libssh.exe s'est terminé avec le code -1073741515

Thanks for your time

jsulm

Did you debug step by step to see in which line it crashes?

Wotan

I tried to debug it step by step but it is impossible because it crashed before the first line.
I have made a discovery, it is a problem of link with the dll. I made a comparison with another project which work. In the release repertory right aside the .exe file I found the following .dll :

libeay32.dll
libssh.dll
libssh_threads.dll

I took those dll and copy them in my release repertory and now it worked.
I thought that the link was made with the file in the LibSSH directory but apparently it is not enough. I don't understand where I was supposed to find these dlls (I confess that I am not very used with the dlls)
I am glad that I found the solution and very thankful for the time you spare to me.
Now I still liked to know what was my mistake when I took the library libssh.

Thanks to you all !

jsulm

Well, the system is looking for libraries in specific locations like c:\windows and in the same directory where the exe is located. That's why it didn't find the DLLs.

Wotan

How do we mark a subject as solved ?