--- a/Makefile
+++ b/Makefile
@@ -74,19 +74,14 @@
 #code can be reviewed manually
 #MW=-Wtraditional -Wcast-qual -Wcast-align -Wconversion -pedantic -Wlong-long -Wimplicit -Wuninitialized -W -Wshadow -Wsign-compare -Wstrict-prototypes -Wmissing-declarations
 
-CFLAGS1 = -Wall -Wstrict-prototypes -s -O2 -fomit-frame-pointer -Wno-unused-result $(LARGEFILEFLAGS) $(MW)
-
-CC=gcc
-
 # also using contents of usin CPPFLAGS, CFLAGS, LDFLAGS out of environment
 # variables, if they exist
-CFLAGS += $(CFLAGS1) $1 $2 $3 $4 $5 $6 $7 $8 $9 $a $b $c $d $e $(e2) $f $g $I
-LDFLAGS +=
-CPPFLAGS +=
+CC ?= gcc
+CFLAGS += -Wall -Wstrict-prototypes
+CPPFLAGS += ${LARGEFILEFLAGS} ${2} ${3} ${6} ${8} ${c} ${d} ${e2} ${f} ${g}
 
 afio : afio.o compfile.o exten.o match.o $M
-	$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) \
-	afio.o compfile.o exten.o match.o $M -o afio
+	$(CC) $(CFLAGS) $(LDFLAGS) $^ -o $@
 
 clean:
 	rm -f *.o afio