command line argument to shader

glonkers.c

@@ -1,7 +1,7 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <time.h> 
 #include <stdint.h>
-#include <string.h>
 #include <wayland-client.h>
 #include <wayland-util.h>
 #include <SDL3/SDL.h>
@@ -79,7 +79,7 @@ double time_since_start() {
            (now.tv_nsec - program_start.tv_nsec) / 1e9;
 }
 
-int main() {
+int main(int argc, char *argv[]) {
     init_timer();
 
     printf("Good Morning 🍵\n");
@@ -119,8 +119,16 @@ int main() {
             }
         }
 
+        char *shader_path = NULL;
+        if (argc >= 2) {
+            shader_path = argv[1];
+        } else {
+            printf("need to supply path to shader\n");
+            exit(1);
+        }
+
         double time = time_since_start();
-        render(&renderer,  w, h, time);
+        render(&renderer, w, h, time, shader_path);
 
         SDL_GL_SwapWindow(window);
     }