I use an English (US) international keyboard layout, and every time I use the key ´ followed by c it yields the Portuguese and French character "ç" (cedilla), which is desirable. However in GTK apps (Pidgin for instance) it yields "ć", which is Polish.
How can I make GTK apps behave the same way as the rest of the apps do?
NOTE: I had the same problem on Ubuntu 11.04 and 10.10, and they found two sets of solutions that work on those specific versions.