Ubuntu 11.10: GCC/G++ won't link libraries

Question

I went to compile a project of mine, which uses SDL, SDL_ttf, OpenAL, and GTK. All of which are outputting errors like the following:

TxtFunc.cpp:(.text+0x61         


        

Answer 1

Generally you need to have your -l options after the files that use the symbols on the command line. Perhaps try moving the sdl-config --libs --cflags to the end of the command? i.e. for your test program:

g++ -o sdl-test ./sdl-test.cpp `sdl-config --libs --cflags`

Answer 2

Gah, which pillock got the idea to change the compiler to rely now on the order of options in the command line?

Well,that fixed my problem too, just moved ($CFLAGS) after ($OBJS) in my Makefile and all my linking problems with unknown references to SDL libs are gone >.<

Answer 3

In case you use SDL_ttf, you need to

g++ main.cpp -o sdl-test `sdl-config --libs --cflags` -lSDL_ttf