On 09.12.2011, at 20:42, Justin wrote: > I compiled fltk 1.3 on OS X 10.7 without a problem. I ran a simple program to > create a hello world window as well. However, I am trying to create an > Fl_Gl_Window and now I am getting this error: > > > g++ -I/usr/local/include -I/usr/local/include/FL/images -D_LARGEFILE_SOURCE > -D_LARGEFILE64_SOURCE -D_THREAD_SAFE -D_REENTRANT -o 'myprogram' > 'myprogram.cpp' /usr/local/lib/libfltk.a -lpthread -framework Cocoa > Undefined symbols for architecture x86_64: > "Fl_Gl_Window::~Fl_Gl_Window()", referenced from: > MyWindow::~MyWindow()in ccUhGfnh.o > MyWindow::~MyWindow()in ccUhGfnh.o > "vtable for Fl_Gl_Window", referenced from: > Fl_Gl_Window::Fl_Gl_Window(int, int, int, int, char const*)in ccUhGfnh.o > NOTE: a missing vtable usually means the first non-inline virtual member > function has no definition. > "Fl_Gl_Window::init()", referenced from: > Fl_Gl_Window::Fl_Gl_Window(int, int, int, int, char const*)in ccUhGfnh.o > "Fl_Gl_Window::handle(int)", referenced from: > vtable for MyWindowin ccUhGfnh.o > "Fl_Gl_Window::resize(int, int, int, int)", referenced from: > vtable for MyWindowin ccUhGfnh.o > "Fl_Gl_Window::show()", referenced from: > vtable for MyWindowin ccUhGfnh.o > "Fl_Gl_Window::hide()", referenced from: > vtable for MyWindowin ccUhGfnh.o > "Fl_Gl_Window::flush()", referenced from: > vtable for MyWindowin ccUhGfnh.o > "Fl_Gl_Window::draw_overlay()", referenced from: > vtable for MyWindowin ccUhGfnh.o > "typeinfo for Fl_Gl_Window", referenced from: > typeinfo for MyWindowin ccUhGfnh.o > ld: symbol(s) not found for architecture x86_64 > collect2: ld returned 1 exit status
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