Fail to compile Arch Linux

[snyderth]

I am trying to build the firmware on arch and every time I make compile or make build it returns the following error:
In file included from **src/modules/src/crtp_commander_generic.c:35: /usr/arm-none-eabi/include/math.h:133:12: error:** expected identifier or '(' before '**double**' extern int isnan (double);
'src/utils/interface/num.h:41:28: error: expected ')' before '?' token
#define isnan(n) ((n !- n) ? 1: 0)`

I just updated my local copy today. I'm building with config.mk options:
PLATFORM=CF2 ESTIMATOR=kalman LPS_TDOA_ENABLE=1 CLOAD=1

[snyderth]

Compiling with toolbelt works

[ataffanel]

Good that it worked with the toolbelt/docker.

The original problem was most likely caused by a wrong version of GCC, the Crazyflie firmware should be compiled with gcc-arm-embedded. If you add it in your path you will be able to compile crazyflie-firmware directly from arch.