Allegro5 with Eclipse on Ubuntu 11.10

Allegro5 with Eclipse on Ubuntu 11.10

Johannes Bergmark

Member #4,867

July 2004

I've some problems getting it to work. I've compiled and installed Allegro5 with no problems ie:
ccmake -DCMAKE_INSTALL_PREFIX=/usr ..
make -j8
sudo make install

As for in eclipse I've added the libs in:
Project -> Properties -> C/C++ Build -> Settings -> Tool Settings -> GCC C++ Linker -> Libraries -> Library search path (-L)

which are:

`pkg-config --libs allegro-5.0 allegro_primitives-5.0 allegro_image-5.0 allegro_font-5.0 allegro_ttf-5.0`

The problem comes to that I get undefined reference errors of every allegro function call in the build-log.

I've tried to solve the problem och testing me through and googled after solutions, nothing worked.

#SelectExpand
  1#include <stdio.h>
  2#include <allegro5/allegro.h>
  3#include <allegro5/allegro_image.h>
  4#include <allegro5/allegro_font.h>
  5#include <allegro5/allegro_ttf.h>
  6
  7#include <math.h>
  8#include<list>
  9#include <iostream>
 10using namespace std;
 11
 12int main(int argc, char **argv)
 13{
 14
 15  ALLEGRO_DISPLAY *display = NULL;
 16
 17  if(!al_init()) {
 18    fprintf(stderr, "failed to initialize allegro!\n");
 19    return -1;
 20  }
 21
 22  display = al_create_display(1280, 1024);
 23  if(!display) {
 24    fprintf(stderr, "failed to create display!\n");
 25    return -1;
 26  }
 27
 28  //al_init_primitives_addon();
 29  al_init_image_addon();
 30  al_init_font_addon();
 31  al_init_ttf_addon();
 32
 33  if(!al_install_keyboard()) return 0;
 34  if(!al_install_mouse()) return 0;
 35  al_set_system_mouse_cursor(display, ALLEGRO_SYSTEM_MOUSE_CURSOR_DEFAULT);
 36
 37  /*
 38  while(!al_key_down(&kState, ALLEGRO_KEY_ESCAPE))
 39  {
 40    al_clear_to_color(al_map_rgb(0,0,0));
 41
 42    al_get_mouse_state(&mState);
 43
 44
 45    mp.x = mState.x;
 46    mp.y = mState.y;
 47    al_get_keyboard_state(&kState);
 48
 49
 50    al_flip_display();
 51    al_rest(0.01);
 52    al_get_keyboard_state(&kState);
 53  }//while
 54  */
 55
 56  al_rest(10.0);
 57
 58  al_destroy_display(display);
 59
 60  return 0;
 61}

#SelectExpand
  2*** Build of configuration Debug for project test *
  3  4make all 
  5Building target: test
  6Invoking: GCC C++ Linker
  7g++ `pkg-config --libs allegro-5.0 allegro_primitives-5.0 allegro_image-5.0 allegro_font-5.0 allegro_ttf-5.0`  -o"test"  ./src/test.o   
  8./src/test.o: In function `main':  9/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:17: undefined reference to `al_install_system' 10/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:22: undefined reference to `al_create_display' 11/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:29: undefined reference to `al_init_image_addon' 12/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:30: undefined reference to `al_init_font_addon' 13/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:31: undefined reference to `al_init_ttf_addon' 14/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:33: undefined reference to `al_install_keyboard' 15/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:34: undefined reference to `al_install_mouse' 16/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:35: undefined reference to `al_set_system_mouse_cursor' 17/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:56: undefined reference to `al_rest' 18/media/sda3/Documents/eclipse_cpp_projects/test/Debug/../src/test.cpp:58: undefined reference to `al_destroy_display' 19collect2: ld returnerade avslutningsstatus 1 20make: *** [test] Fel 1

"There are no Mines for the Sword." --?

"Det finns inga Minor för Svärdet." --?

Arthur Kalliokoski

Second in Command

February 2005

Maybe 'sudo ldconfig' might help? It updates the library locations or some such.

They all watch too much MSNBC... they get ideas.

Trent Gamblin

Member #261

April 2000

Remove the -L from the pkg-config command.

Oh, I see eclipse did that because you put them in the wrong location. Put that command as extra libraries or whatever eclipse calls it.

Johannes Bergmark

Member #4,867

July 2004

I've already tried both solutions you guys/girls made. I've both removed -L and used ldconfig but it doesn't work.

"There are no Mines for the Sword." --?

"Det finns inga Minor för Svärdet." --?

Arthur Kalliokoski

Second in Command

February 2005

I don't use any IDE's, but a command line that will successfully compile on Slackware is like

gcc -s -O2 -Wall t.c -o t -lallegro -lallegro_image -lallegro_ttf

They all watch too much MSNBC... they get ideas.

Johannes Bergmark

Member #4,867

July 2004

Thanks Kallokoski!

This worked in terminal:
g++ -s -O2 -Wall test.cpp -o t -lallegro_primitives -lallegro_image -lallegro_ttf -lallegro_font -lallegro

Edit:
But as for in Eclipse this turns out to be:
g++ -s -O2 -Wall -lallegro_primitives -lallegro_image -lallegro_ttf -lallegro_font -lallegro -o"test" ./src/test.o

which creates errors, there is something wrong with the automation here. I maybe will solve it...

"There are no Mines for the Sword." --?

"Det finns inga Minor för Svärdet." --?