From 87814f7bb924122cd7bad2ed9732a7e13fb9fa7a Mon Sep 17 00:00:00 2001
From: Olaf Seibert <rhialto@falu.nl>
Date: Thu, 28 May 2015 20:04:31 +0200
Subject: [PATCH] Automatic dependency generation with gcc -MM.

---
 Makefile | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/Makefile b/Makefile
index aa9eda3..b2fe715 100644
--- a/Makefile
+++ b/Makefile
@@ -30,22 +30,12 @@ macro11: $(MACRO11_OBJS) Makefile
 dumpobj: $(DUMPOBJ_OBJS) Makefile
 	$(CC) $(CFLAGS) -o dumpobj $(DUMPOBJ_OBJS)
 
-MACRO11_OBJS: Makefile
-DUMPOBJ_OBJS: Makefile
+$(MACRO11_OBJS): Makefile
+$(DUMPOBJ_OBJS): Makefile
 
 clean:
 	-rm -f $(MACRO11_OBJS) $(DUMPOBJ_OBJS) macro11 dumpobj
-
-macro11.o: macro11.c macro11.h rad50.h object.h  stream2.h \
- mlb.h util.h symbols.h
-mlb.o: mlb.c  rad50.h stream2.h mlb.h macro11.h util.h
-mlb-rsx.o: mlb-rsx.c  rad50.h stream2.h mlb.h macro11.h util.h
-object.o: object.c rad50.h object.h
-stream2.o: stream2.c macro11.h  stream2.h
-util.o: util.c util.h
-rad50.o: rad50.c rad50.h
-dumpobj.o: dumpobj.c rad50.h util.h
-rad50.o: rad50.c rad50.h
+	-rm -f *.d
 
 # Since the only tests we have so far are for crashes,
 # just try to assemble. Later, we will need expected/actual tests.
@@ -54,17 +44,27 @@ rad50.o: rad50.c rad50.h
 argtests: macro11
 	@ for OPT in -e -d -m -p -o -l -ysl ; do \
 	  ./macro11 foo.mac $$OPT     2> /dev/null; \
-    if (( $$? == 1 )); then echo PASS; else echo FAIL; fi; \
-    echo "  $$OPT missing value"; \
+	  if (( $$? == 1 )); then echo PASS; else echo FAIL; fi; \
+	  echo "  $$OPT missing value"; \
 	  ./macro11 foo.mac $$OPT -v  2> /dev/null; \
-    if (( $$? == 1 )); then echo PASS; else echo FAIL; fi; \
-    echo "  $$OPT fol. by option"; \
-	done
+	  if (( $$? == 1 )); then echo PASS; else echo FAIL; fi; \
+	  echo "  $$OPT fol. by option"; \
+	  done
 	@ ./macro11 foo.mac $$OPT -x -v 2> /dev/null; \
-    if (( $$? == 1 )); then echo PASS; else echo FAIL; fi; \
-    echo "  -x must be the last option"
+	  if (( $$? == 1 )); then echo PASS; else echo FAIL; fi; \
+	   echo "  -x must be the last option"
 
 tests: macro11 argtests
 	@ ACTUAL=`./macro11 tests/test-undef.mac 2>&1`; \
 	if [ "tests/test-undef.mac:1: ***ERROR MACRO .TTYOU not found" == "$$ACTUAL" ]; then echo PASS; else echo FAIL; fi; \
 	echo "  test-undef.mac"
+
+# Automatic dependency generation
+
+-include $(ALL_SRCS:.c=.d)
+
+%.d: %.c
+	@set -e; rm -f $@; \
+	    $(CC) -MM $(CPPFLAGS) $< > $@.$$$$; \
+	    sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
+	    rm -f $@.$$$$