started migration stack->tree

Makefile

@@ -4,11 +4,11 @@ CFLAGS := -w -g -pg -DDEBUG
 TIME := \time -f "\ttime: %E real, %U user, %S sys\n\tcontext-switch:\t%c+%w, page-faults: %F+%R\n"
 export PATH := .:$(PATH)
 
-TARGETS=lceb tree oper stack eval
+TARGETS=lceb tree oper stack eval best
 INCLUDES=lceb.h
 OBJS=$(TARGETS:=.o)
 
-.PHONY: all clean stack eval
+.PHONY: all clean stack eval best
 
 all: $(TARGETS)
 
@@ -19,6 +19,8 @@ tree: tree.c lceb.h
 oper: oper.c lceb.h
 	$(CC) $(CFLAGS) -DSTANDALONE -o $@ $?
 
+eval.o stack.o best.o: lceb.h
+
 ex2: ex2-c
 	@$(TIME) ex2-c < $(INPUT)