pools compatibility

src/core/config.h

@@ -223,6 +223,8 @@ enum Config {
 #define USE_MEASUREMENTS_IN_METERS // makes game use meters instead of feet in script
 #define USE_PRECISE_MEASUREMENT_CONVERTION // makes game convert feet to meeters more precisely
 
+#define COMPATIBLE_SAVES // this allows changing structs while keeping saves compatible
+
 // Replay
 //#define DONT_FIX_REPLAY_BUGS // keeps various bugs in CReplay, some of which are fairly cool!
 //#define USE_BETA_REPLAY_MODE // adds another replay mode, a few seconds slomo (caution: buggy!)