Problem with eclipse and atan

[rafix]

Hi all,

i'm using eclipse to make some simple projects with a stm32f303 discovery.
i want to use the atan function or something similar but when i include math.h and use atan, i have the following error:

/home/myName/workspaceChibios/CompassTest//main.c:184: undefined reference to `atan'

I have read about using -lm or add an "m" into libraries, but i cant to that by project property.

Any ideas?

Thanks

[Abhishek]

I suppose you are using Eclipse with linux, and you are using the ChibiOS makefiles, right?

You should add '-lm' to the makefile to the DLIBS section of the Makefile. It should work then.

[rafix]

THANK YOU !

fast and effective