[LinuxBIOS] Problem on Compilation in mainboard iei nova4899r

I have test to compil the mainboard iei nova4899r, I have use buildtarguet
for create config file and makefile, but if I tape a make on :

../LinuxBIOSv2/targets/iei/nova4899r/nova4899r/

I have an error :

...
FAILOVER_IMAGE='0'
/home/ccases/projet_bios/source_linuxBios/LinuxBIOSv2/src/mainboard/iei/nova4899r/failover.c
-o failover.inc'
make[1]: *** [failover.inc] Erreur 2
make[1]: Leaving directory
`/home/ccases/projet_bios/source_linuxBios/LinuxBIOSv2/targets/iei/nova4899r/nova4899r/fallback'
make: *** [fallback/linuxbios.rom] Erreur 1

I don't know why I have this problem. If anyone nows ?

thank's by advance

CCases