I was doing the 12th chapter in Bjarne's 2nd edition of "Programming: Principles and Practices using C++" in which i have to install Fltk and alo use many other header files in the project. I successfully installed Fltk and build it but i don't know how to link the Fltk file and other necessary file in a single project. I have tried a lot of things but nothing is working. The code i wanna run is this:
#include "Simple_window.h"
#include "Graph.h"
int main()
{
using namespace Graph_lib;
Point tl {100,100};
Simple_window win {tl,600,400,"Canvas"};
Polygon poly;
poly.add(Point{300,200});
poly.add(Point{350,100});
poly.add(Point{400,200});
poly.set_color(Color::red);
win.attach (poly);
win.wait_for_button();
}
This is my project and the files i have tried to link and failed:
And this is what i am getting as the error, even after lot of searching on the internet, i can't figure out how to solve this issue:
pls tell me what i am doing wrong, i am very new to Xcode. Also if there is another way to make the program without Xcode, then that will help too. Even though i got the same error while making the program using Make.