Fix -Wextra warning in generated .pb.c files.

Compile the generated files with the same extra-strict
settings as the core, in order to detect problems in tests.

Update issue 32
Status: FixedInGit

pb.h

@@ -194,7 +194,7 @@ typedef enum {
 #define pb_arraysize(st, m) (pb_membersize(st, m) / pb_membersize(st, m[0]))
 #define pb_delta(st, m1, m2) ((int)offsetof(st, m1) - (int)offsetof(st, m2))
 #define pb_delta_end(st, m1, m2) (offsetof(st, m1) - offsetof(st, m2) - pb_membersize(st, m2))
-#define PB_LAST_FIELD {0,(pb_type_t) 0,0,0}
+#define PB_LAST_FIELD {0,(pb_type_t) 0,0,0,0,0,0}
 
 /* These macros are used for giving out error messages.
  * They are mostly a debugging aid; the main error information

tests/Makefile

@@ -11,6 +11,9 @@ all: breakpoints $(TESTS) run_unittests
 clean:
 	rm -f $(TESTS) person.pb* alltypes.pb* *.o *.gcda *.gcno
 
+%.pb.o: %.pb.c %.pb.h
+	$(CC) $(CFLAGS) $(CFLAGS_CORE) -c -o $@ $<
+
 %.o: %.c
 %.o: %.c $(DEPS)
 	$(CC) $(CFLAGS) -c -o $@ $<