Makefile: Streamline it

Rather than list out the individual targets for the different programs,
just a single target that can handle them all.

We also streamline the output a little, so rather than printing the gcc
command line we get

  CCLNK <target>

for each program.

Signed-off-by: Andrew Clayton <[email protected]>

Author: ac000

Makefile

@@ -12,47 +12,23 @@ GLIBC_VER_OK	:= $(shell test $(GLIBC_MAJOR) -ge 2 && \
 			   test $(GLIBC_MINOR) -ge 17 && \
 			   echo 1)
 
+LIBS_FOR_GEN_ULA = -luuid -lmhash
+
 ifneq "$(GLIBC_VER_OK)" "1"
 	# clock_* functions need linking against -lrt in glibc < 2.17
 	LIBS := -lrt
 endif
 
-all: ipv6-range ipv6-arpa ipv6-isin gen-ula mac-to-eui64 mac-type \
-	ipv6-extract-mac prefix-to-mask mask-to-prefix ipv6-fmt ipv6-gen-slaac
-
-ipv6-range: ipv6-range.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-ipv6-arpa: ipv6-arpa.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-ipv6-isin: ipv6-isin.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-gen-ula: gen-ula.c
-	$(CC) $(CFLAGS) -o $@ $< -luuid -lmhash $(LIBS)
-
-mac-to-eui64: mac-to-eui64.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-mac-type: mac-type.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-ipv6-extract-mac: ipv6-extract-mac.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-prefix-to-mask: prefix-to-mask.c
-	$(CC) $(CFLAGS) -o $@ $<
-
-mask-to-prefix: mask-to-prefix.c
-	$(CC) $(CFLAGS) -o $@ $<
+sources = $(wildcard *.c)
 
-ipv6-fmt: ipv6-fmt.c
-	$(CC) $(CFLAGS) -o $@ $<
+.ONESHELL:
 
-ipv6-gen-slaac: ipv6-gen-slaac.c
-	$(CC) $(CFLAGS) -o $@ $<
+.PHONY: all
+all: $(patsubst %.c,%,$(sources))
+%: %.c
+	@echo -e "  CCLNK\t$@"
+	@if [[ "$@" == "gen-ula" ]]; then libs="-luuid -lmhash"; fi
+	$(CC) $(CFLAGS) -o $@ $$libs $<
 
 clean:
-	rm -f ipv6-range ipv6-arpa ipv6-isin gen-ula mac-to-eui64 mac-type \
-	ipv6-extract-mac prefix-to-mask mask-to-prefix ipv6-fmt ipv6-gen-slaac
+	rm -f $(patsubst %.c,%,$(sources))