Following an update of Arduino IDE from 1.0.6 to 1.6.7 I recompiled a number of known working sketches to find that I got: "functionthisorthat was not declared in this scope" on many of these sketches.
Note that I was able to re-compile a couple of the sketches by re-shuffling the relative position of these function declarations. Such that the 'not declared' functions would be placed above the calling functions.
This maybe irrelevant but I am compiling for a Teensy3.1
1) Has anybody else seen this ?
2) Short of re-editing all my old sketches is there a simple way to get around these error messages ?