Hi Didier, I solved the problem. FINALLY!! :-) uh-hu I tried almost everything: re-install a entire Ubuntu 12.04 system, upgrade the gcc compiler, re-install the rohc library several times...
After reading a lot about linking libraries in Ubuntu, i found that the problem was in the command. The correct input for Ubuntu (12.04 or 13.04) must be: gcc -Wall rohc_hello_world.c -o rohc_hello_world $(pkg-config rohc --cflags --libs) The command "gcc -o rohc_hello_world -Wall $(pkg-config rohc --cflags --libs) rohc_hello_world.c" doesn't work in Ubuntu systems! I suggest you put a note with this observation on the "getting started" section for future users. Regards, Edvar
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