Detect out-of-date saved-structures.h

src/tlcl/Makefile

Index: src/tlcl/Makefile
diff --git a/src/tlcl/Makefile b/src/tlcl/Makefile
index 4dc1cad2efba9393b5f864d9e80ea324fedc8365..cb59b95c7002a8274e91ae10eb87c30eac6e8076 100644
--- a/src/tlcl/Makefile
+++ b/src/tlcl/Makefile
@@ -15,17 +15,21 @@ endif
 CC ?= cc
 HOSTCC = cc
 
-libtlcl.a: tlcl.o 
+libtlcl.a: tlcl.o
 	ar rcs libtlcl.a tlcl.o
 
 tlcl.o: tlcl.c tlcl_internal.h tlcl.h structures.h
 
 structures.h: generator
 	./generator > structures.h
+	sed -e '0,/This file is automatically/d' < structures.h > x.tmp
+	sed -e '0,/This file is automatically/d' < saved-structures.h > y.tmp
+	cmp -s x.tmp y.tmp || \
+		(echo "Please update saved-structures.h" && false)
 
 generator: generator.c tlcl.h
 	$(HOSTCC) $(LOCAL_CFLAGS) -I$(ROOT)/usr/include \
 	-fpack-struct generator.c -o generator
 
 clean:
-	rm -f generator *.o *.a structures.h *~
+	rm -f generator *.o *.a structures.h x.tmp y.tmp *~