From da261a6895ae8d3a069eca0a5a543810d4762488 Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Wed, 6 Jun 2018 21:51:32 +0100
Subject: [PATCH] Makefile: Generate and include dependency information for
 headers.

Not that there are any right now, but it's the principle of the thing.
---
 .gitignore | 1 +
 Makefile   | 6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index 241f56a..aa06ea3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 *.tar.gz
 *.so
 *.o
+*.d
 /COPYING
 /auto-version
 /noip
diff --git a/Makefile b/Makefile
index e6ddd66..4f07525 100644
--- a/Makefile
+++ b/Makefile
@@ -78,7 +78,7 @@ INST_BIN		 = $(INSTALL) -c -m755
 MKDIRS			 = $(INSTALL) -d -m755
 
 ## Probably best if you leave these alone.
-REAL_CFLAGS		 = $(CFLAGS) -fPIC
+REAL_CFLAGS		 = $(CFLAGS) -fPIC -MD
 REAL_LDFLAGS		 = $(LDFLAGS) -shared
 
 ###--------------------------------------------------------------------------
@@ -142,7 +142,7 @@ all:: $(TARGETS)
 .PHONY: ALL
 
 CLEAN			+= $(TARGETS)
-CLEAN			+= *.o
+CLEAN			+= *.o *.d
 clean::
 	rm -f $(CLEAN)
 .PHONY: clean
@@ -160,6 +160,8 @@ $(SCRIPTS): %: withlib.in
 	$(V_GEN)sed "s/@lib@/$@/" withlib.in >$@.new && \
 		chmod +x $@.new && mv $@.new $@
 
+-include $(patsubst %.c,%d,$(ALL_SOURCES))
+
 ###--------------------------------------------------------------------------
 ### Installation.
 
-- 
2.11.0