Some trivial fixes in Makefile
--- a/Makefile
+++ b/Makefile
@@ -4,17 +4,17 @@
 BUILD = $(shell date +%Y%m%d%H)
 #DEBUG = -g -D_DEBUG
 OPTS = -DMAJORVERSION=0 -DMINORVERSION=1 -DSUBMINORVERSION=1 -DBUILD=$(BUILD) -DCODENAME=\"25c3\"
-CFLAGS = -Wall
+CFLAGS += -Wall
 SDIR = src/
 ODIR = obj/
-INSTBINDIR = /usr/local/bin
+INSTBINDIR = $(DESTDIR)/usr/bin
 SRCS = $(SDIR)fspy.c $(SDIR)enumdirs.c $(SDIR)fsevents.c $(SDIR)isnumber.c $(SDIR)stating.c $(SDIR)output.c $(SDIR)regmatch.c $(SDIR)numlen.c $(SDIR)adaptive.c $(SDIR)diff.c
 OBJS = $(ODIR)fspy.o $(ODIR)enumdirs.o $(ODIR)fsevents.o $(ODIR)isnumber.o $(ODIR)stating.o $(ODIR)output.o $(ODIR)regmatch.o $(ODIR)numlen.o $(ODIR)adaptive.o $(ODIR)diff.o
 CC = gcc
 LD = gcc
-LDFLAGS =
+LDFLAGS +=
 DFLAGS = 
-RM = /bin/rm
+RM = rm
 PROG = fspy
 
 all: $(PROG)
@@ -29,7 +29,7 @@ install:
 	cp $(PROG) $(INSTBINDIR)/$(PROG)
 
 clean:
-	$(RM) $(PROG) $(ODIR)*.o
+	$(RM) -f $(PROG) $(ODIR)*.o
 
 # DO NOT DELETE THIS LINE -- make depend depends on it.