target CPU does not support ARM mode

I have a new error, appears from nowhere...
I dowloaded the last L4RE version from the website,
edited the mk/Makeconf file to put my "arm-none-aebi-" compilator
and when i type:
$ make O=build config/ I select ARM 7A / BeagleBoard, as usual,
as it always worked...

Here is my output:

[...]
<stdin>:1:0: error: target CPU does not support ARM mode
[...]
tmp.312625562.c:1:0: error: target CPU does not support ARM mode
 int main(void){}
 ^

He always create tmp file at the folder root whith nothing else than
int main(void) {} inside.

I did NOT change anything and everything was working fine yesterday..

Thanks,

-- 
Maximin COSTE-LEENHARDT