Hi there!
Yestearday, my Arduino IDE worked perfectly.
But today, when I updated my computer, it gives to me the following error:
/usr/lib/gcc/avr/4.5.1/cc1: error while loading shared libraries: libmpfr.so.4: cannot open shared object file: No such file or directory
When I updated, pacman replaced the package "libsigc++2.0" with "libsigc++" (version 2.0).
So, i thunk that's the problem.
How can i solve this??
Best regards ;D