errors trying to compile gtk sample code | Together C & C++ | Page 1

I'm getting a whole bunch of errors attempting to run this sample script from the gtk website, I believe they have to do with the command that was used to compile the script, but I'm not sure. Any ideas I can test out?

compile command:
C:\msys64\mingw64\bin\gcc.exe" -o "c:\Users[USERNAME]\Documents\ccpp\c app\build\debug\app.exe" "c:\Users[USERNAME]\Documents\ccpp\c app\app.c" -I "C:\msys64\mingw64\include\gtk-3.0" -I "C:\msys64\mingw64\include\glib-2.0" -I "C:\msys64\mingw64\lib\glib-2.0\include" -I "C:\msys64\mingw64\include\cairo" -I "C:\msys64\mingw64\include\pango-1.0" -I "C:\msys64\mingw64\include\harfbuzz" -I "C:\msys64\mingw64\include\gdk-pixbuf-2.0" -I "C:\msys64\mingw64\include\graphene-1.0" -I "C:\msys64\mingw64\lib\graphene-1.0\include" -I "C:\msys64\mingw64\include\atk-1.0"

#include <gtk/gtk.h>
#include <stdbool.h>

static void
activate(GtkApplication *app, gpointer user_data){
  GtkWidget *window = gtk_application_window_new(app);
  gtk_window_set_title(GTK_WINDOW(window), "Window");
  gtk_window_set_default_size(GTK_WINDOW(window), 200, 200);
  gtk_widget_set_visible(window, true);
}

int main(int argc, char **argv){
  GtkApplication *app;
  int status;

  app = gtk_application_new("org.gtk.example", G_APPLICATION_DEFAULT_FLAGS);
  g_signal_connect(app, "activate", G_CALLBACK(activate), NULL);
  status = g_application_run(G_APPLICATION(app), argc, argv);
  g_object_unref(app);

  return status;
}

#errors trying to compile gtk sample code