Update tracy to 1664 + enable it (#17914)

code/__defines/_init.dm

@@ -1,5 +1,5 @@
 // NEVER leave this on in your PR or the server will probably explode
-// #define ENABLE_BYOND_TRACY
+#define ENABLE_BYOND_TRACY
 /datum/super_early_init
 
 /datum/super_early_init/New()
@@ -7,7 +7,7 @@
 	// This allows us to get the real details of everything lagging at server start.
 	// world.Profile(PROFILE_START)
 	#if defined(ENABLE_BYOND_TRACY)
-	var/tracy_init = LIBCALL("prof.dll", "init")() // Setup Tracy integration
+	var/tracy_init = LIBCALL(world.system_type == MS_WINDOWS ? "prof.dll" : "./libprof.so", "init")() // Setup Tracy integration
 	if(length(tracy_init) != 0 && tracy_init[1] == ".") // it returned the output file
 		to_world_log("TRACY Enabled, streaming to [tracy_init].")
 	else if(tracy_init != "0")