Each undeclared identifier is reported only once for each function it appears in

[jgarte]

Hi!

 $  gcc hello-world-gtk.c $(pkg-config --cflags --libs gtk4) -o hello-world-gtk
hello-world-gtk.c: In function ‘main’:
hello-world-gtk.c:35:49: error: ‘G_APPLICATION_DEFAULT_FLAGS’ undeclared (first use in this function); did you mean ‘G_APPLICATION_GET_CLASS’?
   35 |   app = gtk_application_new ("org.gtk.example", G_APPLICATION_DEFAULT_FLAGS);
      |                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                 G_APPLICATION_GET_CLASS
hello-world-gtk.c:35:49: note: each undeclared identifier is reported only once for each function it appears in

How comes? :(