The attached patch fixes it by adding some header files to ppp_deflate.c which
somehow makes it properly compile.
But after a second look, I must say I don't really understand how this is 
supposed to work, for example:
	include/linux/spinlock.h 
		* defines spin_lock_bh dependent on local_bh_disable
		* defines preempt_disable
	include/asm-i386/softirq.h
		* defines local_bh_disable dependent on ... preempt_disable
Do we have here a circular dependency problem or ? 
Stelian.
===== drivers/net/ppp_deflate.c 1.6 vs edited =====
--- 1.6/drivers/net/ppp_deflate.c	Mon Mar  4 14:20:25 2002
+++ edited/drivers/net/ppp_deflate.c	Thu Apr  4 14:31:05 2002
@@ -36,11 +36,13 @@
 #include <linux/vmalloc.h>
 #include <linux/init.h>
 #include <linux/smp_lock.h>
+#include <linux/spinlock.h>
 
 #include <linux/ppp_defs.h>
 #include <linux/ppp-comp.h>
 
 #include <linux/zlib.h>
+#include <linux/interrupt.h>
 
 static spinlock_t comp_free_list_lock = SPIN_LOCK_UNLOCKED;
 static LIST_HEAD(comp_free_list);
-- Stelian Pop <stelian.pop@fr.alcove.com> Alcove - http://www.alcove.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/