--- Makefile.in.orig	2004-01-06 16:22:17.000000000 +0900
+++ Makefile.in	2014-06-16 21:40:34.440747700 +0900
@@ -9,11 +9,11 @@
 srcdir=	@srcdir@
 VPATH=	@srcdir@
 
-prefix=	@prefix@
+prefix=	${DESTDIR}@prefix@
 exec_prefix=	@exec_prefix@
 bindir=	@bindir@
 libdir=	@libdir@
-mandir=	@mandir@
+mandir=	${DESTDIR}@mandir@
 
 lvlibdir=	$(libdir)/lv
 distdir = lv$(VERSION)
@@ -41,7 +41,7 @@
 all:	lv
 
 lv:	$(OBJS) $(UNIOBJS)
-	$(PURIFY) $(CC) $(LDFLAGS) -o $@ $(OBJS) $(UNIOBJS) $(LIBS)
+	$(PURIFY) $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS) $(UNIOBJS) $(LIBS)
 
 .c.o:
 	$(CC) $(CFLAGS) -c $<