OpenGL max texture size

get-size.c

#include <stdlib.h>
#include <GL/glut.h>
#include <stdio.h>

int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    glutInitWindowSize(400, 300);
    glutCreateWindow("Hello World");

    int max_texture_size = 0;
    glGetIntegerv(0x0D33, &max_texture_size);
    fprintf(stderr, "%u",  max_texture_size);

    glutMainLoop();
    return 0;
}

Makefile

GL_LIB = /usr/X11R6/lib

get-size: get-size.o
	gcc -o get-size $^ -L$(GL_LIB) -lGL -lglut -lGLEW -lm

clean:
	rm -f get-size get-size.o