From e5565a793e139f29970d46e3c681316f87fa16e8 Mon Sep 17 00:00:00 2001
From: John Sully <john@csquare.ca>
Date: Wed, 1 Jan 2020 10:33:02 -0500
Subject: [PATCH] Add support for incremental build with header files

---
 .gitignore   | 1 +
 src/Makefile | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 717bf3c7c..8489dbacf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .*.swp
 *.o
+*.d
 *.log
 dump.rdb
 redis-benchmark
diff --git a/src/Makefile b/src/Makefile
index 86a763e31..00b623a4b 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -283,14 +283,18 @@ $(REDIS_BENCHMARK_NAME): $(REDIS_BENCHMARK_OBJ)
 dict-benchmark: dict.c zmalloc.c sds.c siphash.c
 	$(REDIS_CC) $(FINAL_CFLAGS) $^ -D DICT_BENCHMARK_MAIN -o $@ $(FINAL_LIBS)
 
+DEP = $(REDIS_SERVER_OBJ:%.o=%.d) $(REDIS_CLI_OBJ:%.o=%.d) $(REDIS_BENCHMARK_OBJ:%.o=%.d)
+-include $(DEP)
+
 # Because the jemalloc.h header is generated as a part of the jemalloc build,
 # building it should complete before building any other object. Instead of
 # depending on a single artifact, build all dependencies first.
 %.o: %.c .make-prerequisites
-	$(REDIS_CC) -c $<
+	$(REDIS_CC) -MMD -o $@ -c $<
 
 clean:
 	rm -rf $(REDIS_SERVER_NAME) $(REDIS_SENTINEL_NAME) $(REDIS_CLI_NAME) $(REDIS_BENCHMARK_NAME) $(REDIS_CHECK_RDB_NAME) $(REDIS_CHECK_AOF_NAME) *.o *.gcda *.gcno *.gcov redis.info lcov-html Makefile.dep dict-benchmark
+	rm -f $(DEP)
 
 .PHONY: clean