X-Git-Url: http://j8takagi.net/cgi-bin/gitweb.cgi?p=YACASL2.git;a=blobdiff_plain;f=src%2FMakefile;h=afb82a661bcc34367fe6933318281ec673a4741f;hp=a3945317536f349ba8c73e75f9b9d2a2f3eb41ca;hb=8b76a2371ab7fc325f11b9164a73e899f98072f0;hpb=86da5514c02652e0a994b8b6951bad226effeb00

diff --git a/src/Makefile b/src/Makefile
index a394531..afb82a6 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,7 +1,12 @@
+CC ?= gcc
+CFLAGS ?= -g -Wall -Wextra -I $(INCLUDE)
+RMF ?= rm -f
+WHICH ?= which
+CTAGS ?= ctags
+ETAGS ?= etags
+SED ?= sed
+
 INCLUDE := ../include
-CC := gcc
-CFLAGS := -g -Wall -Wextra -I $(INCLUDE)
-RM := rm -f
 
 COMMONSRC := word.c cmem.c cerr.c
 CASL2SRC := struct.c hash.c
@@ -10,31 +15,41 @@ EXECSRC := exec.c dump.c
 
 .PHONY: all clean
 
-all: ../casl2 ../comet2 ../dumpword
+all: ../casl2 ../comet2 ../dumpword ctags etags
 
 ../casl2: casl2.o $(subst .c,.o,$(COMMONSRC) $(CASL2SRC) $(ASSRC) $(EXECSRC))
 	$(CC) $(CFLAGS) -o $@ $^
-	@rm -f *.d
+	@$(RMF) *.d
 
 ../comet2: comet2.o $(subst .c,.o,$(COMMONSRC) $(CASL2SRC) $(EXECSRC))
 	$(CC) $(CFLAGS) -o $@ $^
-	@rm -f *.d
+	@$(RMF) *.d
 
 ../dumpword: dumpword.o $(subst .c,.o,$(COMMONSRC))
 	$(CC) $(CFLAGS) -o $@ $^
-	@rm -f *.d
+	@$(RMF) *.d
 
 %.o: %.c
 	$(CC) -c $(CFLAGS) $<
 
 %.d: %.c
-	@$(CC) -MM -I $(INCLUDE) $< | sed 's/\($*\.o\):/\1 $@:/g' >$@
+	@$(CC) -MM -I $(INCLUDE) $< | $(SED) 's/\($*\.o\):/\1 $@:/g' >$@
 
 -include $(subst .c,.d,casl2.c comet2.c dumpword.c $(COMMONSRC) $(CASL2SRC) $(ASSRC) $(EXECSRC))
 
-TAGS: $(INCLUDE)/*.h *.c
-	@if test `which etags`; then etags $^; fi
+ctags: $(INCLUDE)/*.h *.c
+	@$(WHICH) $(CTAGS) >/dev/null && $(CTAGS) $^
+
+etags: $(INCLUDE)/*.h *.c
+	@$(WHICH) $(ETAGS) >/dev/null && $(ETAGS) $^
+
+clean: clean_cmd clean_build clean_tags
+
+clean_cmd:
+	@$(RMF) ../casl2 ../comet2 ../dumpword
+
+clean_build:
+	@$(RMF) *.o *.d
 
-clean:
-	@rm -f ../casl2 ../comet2 ../dumpword
-	@rm -f *.o *.d
+clean_tags:
+	@$(RMF) TAGS tags