Arduino 1.5.7 - example compilation issue

[morterman]

the Robot_Control / examples / explore / R06_Wheel_Calibration does not compile with new gcc/libc - "PROGMEM const char *scripts[]" seems to be erratic (error sugests that the var shoud be const).

the same construct is sugested on http://arduino.cc/en/Reference/PROGMEM (in the "Arrays of strings" paragraph) - and this should be fixed as well.

[matthijskooijman]

The file is here:

https://github.com/arduino/Arduino/blob/ide-1.5.x/libraries/Robot_Control/examples/explore/R06_Wheel_Calibration/scripts_library.h

PROGMEM const char *scripts[]={ ... }

What I think this says is that scripts is an array, pointing to const char *. The scripts variable itself is put into PROGMEM (since PROGMEM is always a modifier to the variable being declared, not the (array element) type, regardless of where it's placed).

Adding another after the * should fix it. Also, moving PROGMEM to the end can clarify things and emphasize that it applies to the variable, not its type. e.g.:

const char * const scripts[] PROGMEM = { ... }

Could you see if this compiles as expected?

[morterman]

yes, I can confirm, that "const char * const scripts[] PROGMEM = { ... }" compiles correcly.

[cmaglie]

Fixed for next release. Thanks!