makefile

一个去掉程序中#ifdef #if 等预处理条件为假的程序

# Makefile for the selective C preprocessor, scpp.
#
# Copyright (c) 1985 by
# Tektronix, Incorporated Beaverton, Oregon 97077
# All rights reserved.
#
# Permission is hereby granted for personal, non-commercial
# reproduction and use of this program, provided that this
# notice and all copyright notices are included in any copy.

DEFS=
CFLAGS= -g $(DEFS)
HDRS= scpp.h

SOURCES= ctrl.c io.c lex.l parse.y scpp.c
OBJECTS= ctrl.o io.o lex.o parse.o scpp.o

all:	scpp scpp.cat
scpp:	$(OBJECTS)
	$(CC) $(CFLAGS) -o scpp $(OBJECTS) -lfl
scpp.cat: scpp.1
	nroff -man scpp.1 >scpp.cat

scpp.o: scpp.c y.tab.h scpp.h
ctrl.o: ctrl.c y.tab.h scpp.h
io.o:  io.c scpp.h
lex.o: lex.c y.tab.h scpp.h
parse.o: parse.c scpp.h

lex.c: lex.l
	lex -l -S./flex.skl lex.l
	sed -e '/yylex/s//xxlex/g' <lex.yy.c >lex.c
	rm lex.yy.c
y.tab.h parse.c: parse.y
	yacc -d parse.y
	mv y.tab.c parse.c

clean:
	-rm -f lex.yy.c lex.c y.tab.c y.tab.h y.output parse.c
	-rm -f $(OBJECTS)

tags: $(SOURCES)
	ctags $(SOURCES)
mail:
	shar -a scpp.1 Makefile lex.l ctrl.c interp io.c >scpp.shar1
	shar -a parse.y scpp.c scpp.h >scpp.shar2