Libcurl+QtCreator+debian

Question

I am a newbie on Linux, so I have a lot of trouble with it.

I want to use curl in my Qt Project (C++). I created the project, then write in my main.cpp

#include <curl/curl.h>

int main( void ){
    CURL *curl;

    /* First step, init curl */
    curl = curl_easy_init();
    if (!curl) {
       return -1;
    }

    return 0;
}

I tried compile that code, but have one error: undefined reference to 'curl_easy_init()' Than i realise, that QT Creator wants know path to library. I open test.pro file and append:

INCLUDEPATH += /usr/lib/x86_64-linux-gnu/

LIBS += /usr/lib/x86_64-linux-gnu/libcurl.a
LIBS += /usr/lib/x86_64-linux-gnu/libcurldll.a

And then error: libcurlldll.a no such file or dirrectory. Definetly a haven't this library, but i try install/reinstall all types of libcurl and it doesn't work.

Sites, where i tried to search information:

http://www.cplusplus.com/forum/general/89488/

http://curl.haxx.se/libcurl/using/apps.html

https://stackoverflow.com/

Please, redirect me to very simple guide "How use libcurl in QT Creator on Debian" or something like that. I need step-by-step guide. Or can you write it to me there, then everyone can use it?

Sorry for my english, i am just learning. Thanks!

Answer 1

This works for me just fine:

main.cpp

#include <curl/curl.h>

int main( void ){
    CURL *curl;

    /* First step, init curl */
    curl = curl_easy_init();
    if (!curl) {
       return -1;
    }

    return 0;
}

main.pro

TEMPLATE = app
TARGET = curl
QT -= core gui

LIBS += -lcurl

# CONFIG += link_pkgconfig
# PKGCONFIG += curl

SOURCES += main.cpp

As you can see in the comment, you could also use pkgconfig instead of the LIBS variable which would probably be even neater.

Make sure you have all the corresponding packages installed that are necessary, for instance the development, etc.