E ae galera, gostei dessa biblioteca e vou postar como foi que fiz para instalar e compilar já que muitos tem problemas e acabam garimpando todo o google e mesmo assim, por azar, não encontram. Sei que é muito difícil não encontrar, mas aqui vai :
No terminal digite:
sudo apt-get install liballegro4.2 liballegro4.2-dev
Aqui meu sources.list caso no seu de erro:
deb-src http://br.archive.ubuntu.com/ubuntu/ dapper main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://br.archive.ubuntu.com/ubuntu/ dapper-updates main restricted
deb-src http://br.archive.ubuntu.com/ubuntu/ dapper-updates main restricted
deb http://br.archive.ubuntu.com/ubuntu/ dapper-updates main restricted
deb-src http://br.archive.ubuntu.com/ubuntu/ dapper-updates main restricted
## Uncomment the following two lines to add software from the 'universe'
## repository.
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://br.archive.ubuntu.com/ubuntu/ dapper universe main restricted multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ dapper universe
## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://br.archive.ubuntu.com/ubuntu/ dapper-backports main restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ dapper-backports main restricted universe multiverse
deb http://br.archive.ubuntu.com/ubuntu/ dapper-backports main restricted universe multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ dapper-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu dapper-security main restricted
deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted
deb http://security.ubuntu.com/ubuntu dapper-security universe
deb-src http://security.ubuntu.com/ubuntu dapper-security universe
## Cristhian Marillat
# deb http://www.debian-multimedia.org sarge main
# deb http://www.debian-multimedia.org etch main
# deb http://www.debian-multimedia.org sid main
#mercury-messenger
#deb http://julio.gdhpress.com.br/apt/ ./
#deb http://blognux.free.fr/debian unstable main
#ntfs-3g
#deb http://givre.cabspace.com/ubuntu/ dapper main main-all
# or
#deb http://ntfs-3g.sitesweetsite.info/ubuntu/ dapper main main-all
# or
#deb http://flomertens.keo.in/ubuntu/ dapper main main-all
#AUTOMATIX REPOS START
#deb http://www.getautomatix.com/apt dapper main
#deb http://archive.canonical.com/ubuntu dapper-commercial main
#deb http://archive.ubuntu.com/ubuntu dapper-updates universe multiverse
deb http://archive.ubuntu.com/ubuntu dapper-security main restricted universe multiverse
#AUTOMATIX REPOS END
deb http://ftp.osuosl.org/pub/pculture.org/democracy/linux/repositories/ubuntu edgy/
Bom aqui um código funcionando 100% que faz uns efeitos de cores na tela:
salve como testeallegro.c
#include <stdio.h>
#include <stdlib.h>
#include <allegro.h>
#define MAX_X 800
#define MAX_Y 600
#define V_MAX_X 0
#define V_MAX_Y 0
#define COLOR_BITS 8
int inicia(void);
void principal(void);
void finaliza(void);
int main (void)
{
if (!inicia())
{
finaliza();
return -1;
}
principal();
finaliza();
return 0;
}
END_OF_MAIN();
int inicia (void)
{
allegro_init();
install_keyboard();
set_color_depth(COLOR_BITS);
if (set_gfx_mode(GFX_AUTODETECT, MAX_X, MAX_Y, V_MAX_X, V_MAX_Y) < 0)
{
printf("Erro ao inicializar o modo grafico.\n");
return (FALSE);
}
set_palette(desktop_palette);
return (TRUE);
}
void principal (void)
{
int i;
int cor;
PALETTE pal;
/* Limpa a tela (para o codigo de cor 0). */
clear(screen);
/*
Torna ativa a black_palette, paleta pre-definida pelo
Allegro que contem apenas a cor preta, para todos os codigos.
Fazemos isso para que os retangulos feitos a seguir nao sejam
vistos ao serem desenhados.
*/
set_palette(desktop_palette);
/*
Desenha retangulos preenchidos, cada um com codigos
de cor variando de 0 a 63, em sequencia.
*/
for (i = 0; i < 64; i++)
{
rectfill(screen, i * 12.5, 0, (i + 1) * 12.5, 599, i);
}
/* Gera tons de azuis */
for (i = 0; i < 64; i++)
{
pal[i].r = 0;
pal[i].g = 0;
pal[i].b = i;
}
while (!keypressed())
{
/* Torna ativa a paleta pal */
set_palette(pal);
/*
Troca os valores de cada codigo de cor,
causando um efeito de animacao.
*/
cor = pal[63].b;
for (i = 63; i > 0; i--)
{
pal[i].b = pal[i - 1].b;
}
pal[0].b = cor;
}
}
void finaliza (void)
{
allegro_exit();
}
Para compilar digite:
gcc testeallegro.c -o testeallegro `allegro-config --libs`
USE CRASE para `allegro-config --libs`
ai rode no terminal
./testeallegro