Track Make dependencies automatically (#115)

nelhage · Jan 2, 2020 · a3e2dce · a3e2dce
1 parent 48d4cb9
commit a3e2dce
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Showing 2 changed files with 7 additions and 6 deletions.
diff --git a/.gitignore b/.gitignore
@@ -1,4 +1,5 @@
 reptyr
 ptrace
 *.o
+*.d
 /.vagrant/
diff --git a/Makefile b/Makefile
@@ -1,5 +1,6 @@
-override CFLAGS := -Wall -Werror -D_GNU_SOURCE -g $(CFLAGS)
+override CFLAGS := -MD -Wall -Werror -D_GNU_SOURCE -g $(CFLAGS)
 OBJS=reptyr.o reallocarray.o attach.o
+DEPS=$(wildcard *.d platform/*/*.d)
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Linux)
 	OBJS += platform/linux/linux_ptrace.o platform/linux/linux.o
@@ -37,12 +38,8 @@ test/victim: test/victim.o
 test/victim: override CFLAGS := $(VICTIM_CFLAGS)
 test/victim: override LDFLAGS := $(VICTIM_LDFLAGS)
 
-attach.o: reptyr.h ptrace.h
-reptyr.o: reptyr.h reallocarray.h
-ptrace.o: ptrace.h platform/platform.h $(wildcard platform/*/arch/*.h)
-
 clean:
-	rm -f reptyr $(OBJS) test/victim.o test/victim
+	rm -f reptyr $(OBJS) test/victim.o test/victim $(DEPS)
 
 BASHCOMPDIR ?= $(shell $(PKG_CONFIG) --variable=completionsdir bash-completion 2>/dev/null)
 
@@ -59,3 +56,6 @@ install: reptyr
 	install -m 644 reptyr.bash $(DESTDIR)$$bashcompdir/reptyr
 
 .PHONY: PHONY
+
+# Pull-in dependencies generated by -MD
+-include $(OBJS:.o=.d)