Define additional variable when doing make develop

Makefile

@@ -221,7 +221,7 @@ develop:
 		-fsanitize=unreachable -fsanitize=vla-bound \
 		-fsanitize=signed-integer-overflow -fsanitize=bounds \
 		-fsanitize=object-size -fsanitize=bool -fsanitize=enum \
-		-fsanitize=alignment -fsanitize=null"
+		-fsanitize=alignment -fsanitize=null -DDEVELOP=1"
 
 # Targets for the project maintainer to easily create Windows exes.
 # This is not for Windows users!

include/helpers.h

@@ -21,4 +21,8 @@
 	#define trap_
 #endif
 
+#ifndef DEVELOP
+	#define DEVELOP 0
+#endif
+
 #endif /* HELPERS_H */