2.4.21-ben2 compile error

[Jean-Paul Vincent <jpvincent1@wanadoo.fr>]

Hi,

Compiling the 2.4.21-ben2 kernel I got :

--------------------------------------------------------------
make[1]: Leaving directory `/usr/src/benh-2.4.21/arch/ppc/xmon'
ld -T arch/ppc/vmlinux.lds -Ttext 0xc0000000 -Bstatic 
arch/ppc/kernel/head.o arch/ppc/kernel/idle_6xx.o init/main.o 
init/version.o init/do_mounts.o \
        --start-group \
        arch/ppc/kernel/kernel.o arch/ppc/platforms/platform.o 
arch/ppc/mm/mm.o arch/ppc/lib/lib.o kernel/kernel.o mm/mm.o fs/fs.o 
ipc/ipc.o arch/ppc/xmon/x.o \
         drivers/char/char.o drivers/block/block.o drivers/misc/misc.o 
drivers/net/net.o drivers/char/drm/drm.o drivers/ide/idedriver.o 
drivers/cdrom/driver.o drivers/pci/driver.o 
drivers/net/wireless/wireless_net.o drivers/macintosh/macintosh.o 
drivers/video/video.o drivers/usb/usbdrv.o drivers/media/media.o 
drivers/input/inputdrv.o \
        net/network.o \
        /usr/src/benh-2.4.21/lib/lib.a \
        --end-group \
        -o vmlinux
arch/ppc/xmon/x.o(.text+0x24c): In function `xmon_map_scc':
: référence indéfinie vers « __sysrq_put_key_op »
make: *** [vmlinux] Erreur 1
---------------------------------------------------------

Any hint ? Thanks.

Jean-Paul Vincent.