This needs to be here because when compiling projects that have HL2_EPISODIC define it gives me "cannot apply 'offsetof' when 'operator[]' is overloaded" error on Linux in hl2_player.cpp on line 436 and 437. It seems like it uses offsetof from the standard library for absolutely unknown reason.

Author: SonicEraZoR

sp/src/game/server/hl2/hl2_player.cpp

@@ -49,6 +49,10 @@
 
 #ifdef HL2_EPISODIC
 #include "npc_alyx_episodic.h"
+#ifdef LINUX
+#undef offsetof
+#define offsetof(s,m)	(size_t)&(((s *)0)->m)
+#endif
 #endif
 
 #ifdef PORTAL