Re: [avr-gcc-list] How can I "#define" a string in the Makefile?

[Russell Shaw]

Bob Paddock wrote:
> > Does this work?:
> >
> >    static CONST char FLASH Firmware_Prj_str[] PROGMEM = "1.23";
>
> I did not try that specifically, but doing this does work:
>
> ===
> #ifndef FIRMWARE_REV_STR
> #define FIRMWARE_REV_STR "0.00"
> #endif
>
> static CONST char FLASH Firmware_Prj_str[] PROGMEM = FIRMWARE_REV_STR;
> ===
>
> This code works ok with IAR's Project Manager as well, where it is defined
> by the project manager and not the code file it self.
>
> It really is a problem involving Make.
>
> FIRMWARE_REV_STR is getting defined to 'something' in Make,
>  just not sure what.

Maybe the quotes are being stripped by the shell so that

  -DFIRMWARE_REV_STR="1.23"

gives 1.23 instead of "1.23". Try:

  #define VERSION  FIRMWARE_REV_STR
  static CONST char FLASH Firmware_Prj_str[] PROGMEM = VERSION;