CODEWITHSUNDEEP
cgccmingwglfwundefined-reference
kadealicious
kadealicious

Reputation: 65

MinGW/GCC GLFW linker issue - undefined reference to "glfwInit"

TL;DR - I have tried all solutions I could find, nothing has worked so far.

Hello, I have searched far and wide but I cannot find an answer to my problem. When I try to compile my C program with GCC, I get an undefined reference to glfwInit(). First, I tried putting the glfw .dll in the same location as the program, which did seemingly nothing. After this I tried removing the glfw libraries from MinGW's "lib" directory and replacing them with the .dll, and adding #define GLFW_DLL to the top of my .c file (same error). I also tried changing the linking order around, adding -lopengl32 and -lgdi32, renaming one of the static libraries just in case the compiler was confused, etc. Nothing seems to be working here, but I have previously installed and developed with SDL2 in the same fashion.

main.c:

#include<stdio.h>
#include<GLFW/glfw3.h>

int main(int argc, char **argv) {
    if(!glfwInit()) {
        printf("Failed!");
        return -1;
    }
    printf("Success!");
    getch();
    return 0;
}

Instructions to the compiler:

gcc -std=c99 -o project.exe main.c -lglfw3 -lglfw3dll

Upvotes: 1

Views: 1053

Answers (1)

kadealicious
kadealicious

Reputation: 65

Alright, I have finally solved the problem. I followed the instructions in this video: https://www.youtube.com/watch?v=bIK95aWk-Bo. The gist of the video is that you need to download CMake as well as the GLFW version found here: https://www.glfw.org/

Then, you need to hit "Configure" after setting the source and build paths. After this, hit "Generate." Then, you need to open a command prompt and locate the newly created MakeFile. I am using Windows, which means I needed to use the command mingw32-make. The library files then built successfully!

After doing this, I put the created .dll and .a files in the MinGW "lib" folder. Then, I copied the .dll and placed it in the same directory as my executable.

Upvotes: 1

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