gcc -g -s testeGTK.c -o testeGTK `pkg-config --cflags --libs gtk+-2.0` Those are backticks, not single quotes. (What's -s?)
-s means strip the binary, pretty daft if you're including -g for debugging symbols.
Chris -- chris.wareham@iosystems.co.uk (work) chris.wareham@btopenworld.com (home)