helloworld: main.o helloworld.o
g++ -o helloworld main.o helloworld.o
You must provide the libs if you create the executable from object files.
Try:
helloworld: main.o helloworld.o
g++ -o helloworld main.o helloworld.o `pkg-config gtkmm-2.4 --cflags
--libs`
instead of:
helloworld: main.o helloworld.o
g++ -o helloworld main.o helloworld.o
> On Windows XP, I succeeded in installing gtk and gtkmm in MinGW (with
> MSYS). And I succeeded in building and running the "Simple Example" in
> Chapter 3 (Basics) of the useful gtkmm tutorial document. But I'm unable
> to build the helloworld example.
>
> Here is my simplistic makefile:
>
> all: helloworld
>
> clean:
> rm main.o helloworld.o helloworld
>
> helloworld: main.o helloworld.o
> g++ -o helloworld main.o helloworld.o
>
> main.o: main.cc helloworld.o
> g++ -c main.cc `pkg-config gtkmm-2.4 --cflags --libs`
>
> helloworld.o: helloworld.cc helloworld.h
> g++ -c helloworld.cc `pkg-config gtkmm-2.4 --cflags --libs`
>
> The output of the make (captured with make 1> makelog.txt 2>
> makelog.txt) starts out like this:
>
> g++.exe: -luuid: linker input file unused because linking nog++ -c
> main.cc `pkg-config gtkmm-2.4 --cflags --libs`
> g++ -o helloworld main.o helloworld.o
> gdkmm-2.4: linker input file unused because linking not done
> g++.exe: -latkmm-1.6: linker input file unused because linking not done
> g++.exe: -lgtk-win32-2.0: linker input file unused because linking not done
> g++.exe: -lpangomm-1.4: linker input file unused because linking not done
> g++.exe: -lcairomm-1.0: linker input file unused because linking not done
> g++.exe: -lglibmm-2.4: linker input file unused because linking not done
> g++.exe: -lsigc-2.0: linker input file unused because linking not done
> g++.exe: -lgdk-win32-2.0: linker input file unused because linking not done
>
> After listing lots more "linker input file unused" statements, I see this:
>
> main.o(.text+0x195):main.cc: undefined reference to
> `Gtk::Main::Main(int&, char**&, bool)'
> main.o(.text+0x1bf):main.cc: undefined reference to
> `Gtk::Main::run(Gtk::Window&)'
> main.o(.text+0x1e9):main.cc: undefined reference to `Gtk::Main::~Main()'
> main.o(.text+0x260):main.cc: undefined reference to `Gtk::Main::~Main()'
> helloworld.o(.text+0x15e):helloworld.cc: undefined reference to
> `Gtk::Window::Window(Gtk::WindowType)'
> helloworld.o(.text+0x1a8):helloworld.cc: undefined reference to
> `Gtk::Button::Button()'
>
> and so on for 87 kilobytes.
>
> For further information, here is what pkg-config tells me about gtk-2.0:
>
> -mms-bitfields -Ic:/MinGW/include/gtk-2.0 -Ic:/MinGW/lib/gtk-2.0/include
> -Ic:/MinGW/include/atk-1.0 -Ic:/MinGW/include/cairo
> -Ic:/MinGW/include/pango-1.0 -Ic:/MinGW/include/glib-2.0
> -Ic:/MinGW/lib/glib-2.0/include -Ic:/MinGW/include/freetype2
>
> And about gtkmm-2.4:
>
> -mms-bitfields -Ic:/MinGW/include/gtkmm-2.4
> -Ic:/MinGW/lib/gtkmm-2.4/include -Ic:/MinGW/include/glibmm-2.4
> -Ic:/MinGW/lib/glibmm-2.4/include -Ic:/MinGW/include/gdkmm-2.4
> -Ic:/MinGW/lib/gdkmm-2.4/include -Ic:/MinGW/include/pangomm-1.4
> -Ic:/MinGW/include/atkmm-1.6 -Ic:/MinGW/include/gtk-2.0
> -Ic:/MinGW/include/sigc++-2.0 -Ic:/MinGW/lib/sigc++-2.0/include
> -Ic:/MinGW/include/glib-2.0 -Ic:/MinGW/lib/glib-2.0/include
> -Ic:/MinGW/lib/gtk-2.0/include -Ic:/MinGW/include/cairomm-1.0
> -Ic:/MinGW/include/pango-1.0 -Ic:/MinGW/include/cairo
> -Ic:/MinGW/include/freetype2 -Ic:/MinGW/include/atk-1.0
>
> I hope someone can spot whatever dumb mistake I'm making. Thanks!
>
> Bruce Sherwood
> _______________________________________________
> gtkmm-list mailing list
> [email protected]
> http://mail.gnome.org/mailman/listinfo/gtkmm-list
>
>
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