Updating a sketch to work with IDE 1.6.6
If I change prog_uchar to unsigned char in both max7456.h and max7456.cpp the hello world example sketch compiles. 

In Max7456WriteTable change

Max7456::getCARACFromProgMem(i,currentChar); //Because the table is too big for ram memory

osd-&gt;sendCharacter(currentChar,i); //We send currentChar at address i.


to 

Max7456::getCARACFromProgMem(tableOfAllCharacters, i,currentChar); //Because the table is too big for ram memory

osd-&gt;sendCharacter(currentChar,i, 0); //We send currentChar at address i.


0 is probably the wrong value, but at least it compiles.