Hi, I'm compiling Zaptel1-1.0.9 in Sparc64/Debian and I'm getting these errors. I compiled asterisk on the same machine and it went ok. I want to activate the conference feature of asterisk thats why i'm compiling zaptel. These are the errors: sip:/usr/local/src/zaptel-1.0.9.1# make gcc -I/usr/src/linux-2.4/include -O6 -DMODULE -D__KERNEL__ -DEXPORT_SYMTAB -I/usr/src/linux/drivers/net -Wall -I. -Wstrict-prototypes -fomit-frame-pointer -I/usr/src/linux/drivers/net/wan -I /usr/src/linux/include -I/usr/src/linux/include/net -DSTANDALONE_ZAPATA -c zaptel.c In file included from /usr/include/linux/dcache.h:10, from /usr/include/linux/fs.h:17, from /usr/include/linux/proc_fs.h:6, from zaptel.c:45: /usr/include/linux/rcupdate.h: In function `rcu_pending': /usr/include/linux/rcupdate.h:114: error: invalid lvalue in unary `&' /usr/include/linux/rcupdate.h:116: error: invalid lvalue in unary `&' /usr/include/linux/rcupdate.h:117: error: invalid lvalue in unary `&' zaptel.c: In function `zt_register': zaptel.c:4406: warning: implicit declaration of function `class_simple_device_add' zaptel.c: In function `zt_unregister': zaptel.c:4456: warning: implicit declaration of function `class_simple_device_remove' zaptel.c: In function `zt_init': zaptel.c:6431: warning: implicit declaration of function `class_simple_create' zaptel.c:6431: warning: assignment makes pointer from integer without a cast zaptel.c: In function `zt_cleanup': zaptel.c:6492: warning: implicit declaration of function `class_simple_destroy' make: *** [zaptel.o] Error 1 please help, Thanks, Ryan