Created attachment 54002 [details]
.config file

Hello,

When I try to compile 2.6.39-rc2 all is OK, but if I try to compile the "nouveau" driver I get an error :

  LD      drivers/built-in.o
  LD      vmlinux.o
  MODPOST vmlinux.o
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
drivers/built-in.o: In function `nouveau_pm_acpi_event':
nouveau_pm.c:(.text+0xdfb69): undefined reference to `power_supply_is_system_supplied'
make: *** [.tmp_vmlinux1] Error 1


I attach the .config file

Regards

JP P