Is there a way to restrict/indicate a library is for the Mega only?

[jwkingsman]

I've got a library which is quite large and thus only compatible with Mega/Mega 2560. My understanding is that the architecture field of the library descriptor is concerned with CPU architecture and not board architecture i.e. I can't go any more granular than AVR.

I've made it clear in my library description, but is there a way to indicate that the lib is Mega-only in some way that might let an end user know before their compilation fails (at library import time etc.)?

Thanks!

[J-M-L]

Not exactly what you ask, but to make it very clear (rather than cryptic resources missing messages when you compile) you could just add

#ifndef __AVR_ATmega2560__
#error "please use an Arduino MEGA"
#endif

at the beginning of your library. That will stop the compiler if you are not compiling for a MEGA 2560, and the user will get an error message

exit status 1
#error "please use an Arduino MEGA"

[JOHI]

Hello,
I have not tried it yet but a solution can be found based on this post:
(#defines related to the mega CPU type):

#Defines - Builtin ?

Hi, As I hate re-inventing the wheel, is there a list of builtin defines / macros for the Arduino MCU? I know from reading that there is DATE & TIME but do defines for ARDUINO_UNO_R3 and ARDUINO_MEGA_2560_R3 (for example), exist, as this would make life much easier for making headers etc. Has anyone compiled a list somewhere? Appreciate the help as always, kind regards, jB 8)

and use :
#pragma message "You have the wrong cpu..." if the proper defines are not present.
Best regards,
Johi.