Cleaned up process table structure: removed p_type, p_pendcount.

Removed stop sequence when MINIX is shut down.
Disabled send mask checks --- to be replaced by proper mechanism.
Fixed bug relating to 'shutdown -x'.
Simplified clock accounting of realtime.
Updated Makefiles for mkdept script.

kernel/system/Makefile

@@ -3,14 +3,6 @@
 # Directories
 u = /usr
 i = $u/include
-s = $i/sys
-h = $i/minix
-m = $i/ibm
-l = $u/lib
-n = $i/net
-g = $n/gen
-x = .
-k = ..
 
 # Programs, flags, etc.
 CC =	exec cc
@@ -20,35 +12,19 @@ CFLAGS = -I$i
 LDFLAGS = -i
 
 SYS = 	clock.o copying.o debugging.o devio.o irqctl.o proctl.o \
-	sysctl.o misc.o sigctl.o tracing.o \
+	sysctl.o misc.o sigctl.o tracing.o 
 
 # What to make.
 all build: $(SYS)
-	aal cr system.a $(SYS)
 
 clean:
 	rm -f *.a *.o *.bak 
 
-# Dependencies from src/kernel/kernel.h
-a =	$h/config.h $h/const.h $h/type.h $h/ipc.h \
-	$i/string.h $i/limits.h $i/errno.h $i/stddef.h \
-	$s/types.h \
-	$m/portio.h \
-	$k/proc.h $k/const.h $k/type.h $k/proto.h $k/glo.h 
+depend: 
+	/usr/bin/mkdep "$(CC) -E $(CPPFLAGS)" *.c > .depend
 
-# Dependencies from src/kernel/system.h
-b = 	$k/system.h $h/com.h $k/proc.h 
-
-clock.o:	$a $b 
-copying.o:	$a $b 
-debugging.o:	$a $b 
-devio.o:	$a $b $h/devio.h 
-irqctl.o:	$a $b 
-misc.o: 	$a $b $i/unistd.h
-proctl.o:	$a $b $k/sendmask.h $k/protect.h $i/signal.h  
-sigctl.o:	$a $b $i/signal.h $s/sigcontext.h 
-sysctl.o:	$a $b $s/svrctl.h $k/sendmask.h 
-tracing.o:	$a $b $s/ptrace.h
+# Include generated dependencies.
+include .depend