Blocked compilation of plugins that use unavailable functions

- Rather than failing at runtime, plugins that try to access
  non-interfaced, unavailable functions or variables, will now show an
  error at compile-time.

Signed-off-by: Haru <haru@dotalux.com>

82 files changed, 223 insertions, 53 deletions

diff --git a/src/char/HPMchar.h b/src/char/HPMchar.h
index 9d367725c..aa266f1de 100644
--- a/src/char/HPMchar.h
+++ b/src/char/HPMchar.h
@@ -4,6 +4,10 @@
 #ifndef CHAR_HPMCHAR_H
 #define CHAR_HPMCHAR_H
 
+#ifndef HERCULES_CORE
+#error You should never include HPMchar.h from a plugin.
+#endif
+
 #include "../common/cbasetypes.h"
 #include "../common/HPM.h"
 
diff --git a/src/char/char.h b/src/char/char.h
index a6707a7f9..4b68dc43c 100644
--- a/src/char/char.h
+++ b/src/char/char.h
@@ -63,6 +63,7 @@ enum {
 	TABLE_GUILD_STORAGE,
 };
 
+#ifdef HERCULES_CORE
 extern int char_name_option;
 extern char char_name_letters[];
 extern bool char_gm_read;
@@ -112,6 +113,7 @@ extern int log_inter;
 
 void char_load_defaults();
 void char_defaults();
+#endif // HERCULES_CORE
 
 struct char_auth_node {
 	int account_id;
diff --git a/src/char/geoip.h b/src/char/geoip.h
index 8cad2f73b..a7ab6b9a4 100644
--- a/src/char/geoip.h
+++ b/src/char/geoip.h
@@ -27,6 +27,8 @@ struct geoip_interface {
 
 struct geoip_interface *geoip;
 
+#ifdef HERCULES_CORE
 void geoip_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* CHAR_GEOIP_H */
diff --git a/src/char/int_auction.h b/src/char/int_auction.h
index ad8ac7b67..c27ecd6c3 100644
--- a/src/char/int_auction.h
+++ b/src/char/int_auction.h
@@ -6,7 +6,9 @@
 
 #include "../common/mmo.h"
 
+#ifdef HERCULES_CORE
 void inter_auction_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_auction_interface interface
diff --git a/src/char/int_elemental.h b/src/char/int_elemental.h
index 611d97550..7aa379ebb 100644
--- a/src/char/int_elemental.h
+++ b/src/char/int_elemental.h
@@ -6,7 +6,9 @@
 
 #include "../common/cbasetypes.h"
 
+#ifdef HERCULES_CORE
 void inter_elemental_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_elemental_interface interface
diff --git a/src/char/int_guild.h b/src/char/int_guild.h
index 960150f4f..e7d089943 100644
--- a/src/char/int_guild.h
+++ b/src/char/int_guild.h
@@ -22,7 +22,9 @@ enum {
 	GS_REMOVE = 0x8000,
 };
 
+#ifdef HERCULES_CORE
 void inter_guild_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_guild interface
diff --git a/src/char/int_homun.h b/src/char/int_homun.h
index 5bfa355d4..0212da150 100644
--- a/src/char/int_homun.h
+++ b/src/char/int_homun.h
@@ -8,7 +8,9 @@
 
 struct s_homunculus;
 
+#ifdef HERCULES_CORE
 void inter_homunculus_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_homunculus interface
diff --git a/src/char/int_mail.h b/src/char/int_mail.h
index 5ce7bafa2..02f640ae2 100644
--- a/src/char/int_mail.h
+++ b/src/char/int_mail.h
@@ -10,7 +10,9 @@ struct item;
 struct mail_data;
 struct mail_message;
 
+#ifdef HERCULES_CORE
 void inter_mail_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_mail interface
diff --git a/src/char/int_mercenary.h b/src/char/int_mercenary.h
index b22ea61b2..049429e1d 100644
--- a/src/char/int_mercenary.h
+++ b/src/char/int_mercenary.h
@@ -8,7 +8,9 @@
 
 struct mmo_charstatus;
 
+#ifdef HERCULES_CORE
 void inter_mercenary_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_mercenary interface
diff --git a/src/char/int_party.h b/src/char/int_party.h
index 0c70a5300..61d828bc0 100644
--- a/src/char/int_party.h
+++ b/src/char/int_party.h
@@ -23,7 +23,9 @@ struct party_data {
 	unsigned char size; //Total size of party.
 };
 
+#ifdef HERCULES_CORE
 void inter_party_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_party interface
diff --git a/src/char/int_pet.h b/src/char/int_pet.h
index 873613307..69e440781 100644
--- a/src/char/int_pet.h
+++ b/src/char/int_pet.h
@@ -6,7 +6,9 @@
 
 struct s_pet;
 
+#ifdef HERCULES_CORE
 void inter_pet_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_pet interface
diff --git a/src/char/int_quest.h b/src/char/int_quest.h
index 265a3f97a..2cb359d40 100644
--- a/src/char/int_quest.h
+++ b/src/char/int_quest.h
@@ -4,7 +4,9 @@
 #ifndef CHAR_QUEST_H
 #define CHAR_QUEST_H
 
+#ifdef HERCULES_CORE
 void inter_quest_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_quest interface
diff --git a/src/char/int_storage.h b/src/char/int_storage.h
index 6c380f29b..11a16de83 100644
--- a/src/char/int_storage.h
+++ b/src/char/int_storage.h
@@ -7,7 +7,9 @@
 struct storage_data;
 struct guild_storage;
 
+#ifdef HERCULES_CORE
 void inter_storage_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter_storage interface
diff --git a/src/char/inter.h b/src/char/inter.h
index c4bb43c1d..7f5b5fc22 100644
--- a/src/char/inter.h
+++ b/src/char/inter.h
@@ -13,9 +13,11 @@ struct accreg;
 
 #define inter_cfgName "conf/inter-server.conf"
 
+#ifdef HERCULES_CORE
 extern unsigned int party_share_level;
 
 void inter_defaults(void);
+#endif // HERCULES_CORE
 
 /**
  * inter interface
diff --git a/src/char/loginif.h b/src/char/loginif.h
index 27eb62a1a..634bd4b8b 100644
--- a/src/char/loginif.h
+++ b/src/char/loginif.h
@@ -28,6 +28,8 @@ struct loginif_interface {
 
 struct loginif_interface *loginif;
 
+#ifdef HERCULES_CORE
 void loginif_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* CHAR_LOGINIF_H */
diff --git a/src/char/mapif.h b/src/char/mapif.h
index f9c06256d..528522d1e 100644
--- a/src/char/mapif.h
+++ b/src/char/mapif.h
@@ -193,6 +193,8 @@ struct mapif_interface {
 
 struct mapif_interface *mapif;
 
+#ifdef HERCULES_CORE
 void mapif_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* CHAR_MAPIF_H */
diff --git a/src/char/pincode.h b/src/char/pincode.h
index f4265716a..178d7e427 100644
--- a/src/char/pincode.h
+++ b/src/char/pincode.h
@@ -42,6 +42,8 @@ struct pincode_interface {
 
 struct pincode_interface *pincode;
 
+#ifdef HERCULES_CORE
 void pincode_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* CHAR_PINCODE_H */
diff --git a/src/common/conf.h b/src/common/conf.h
index 9ea5f5b72..bd97d5c1e 100644
--- a/src/common/conf.h
+++ b/src/common/conf.h
@@ -93,6 +93,8 @@ struct libconfig_interface {
 
 struct libconfig_interface *libconfig;
 
+#ifdef HERCULES_CORE
 void libconfig_defaults(void);
+#endif // HERCULES_CORE
 
 #endif // COMMON_CONF_H
diff --git a/src/common/console.c b/src/common/console.c
index 6c5a5c886..0b1b9cf93 100644
--- a/src/common/console.c
+++ b/src/common/console.c
@@ -40,6 +40,11 @@
 struct console_interface console_s;
 #ifdef CONSOLE_INPUT
 struct console_input_interface console_input_s;
+
+struct {
+	char queue[CONSOLE_PARSE_SIZE][MAX_CONSOLE_INPUT];
+	unsigned short count;
+} cinput;
 #endif
 
 /*======================================
diff --git a/src/common/console.h b/src/common/console.h
index 062d48bbe..3d3c8e9dd 100644
--- a/src/common/console.h
+++ b/src/common/console.h
@@ -44,11 +44,6 @@ struct CParseEntry {
 	unsigned short next_count;
 };
 
-struct {
-	char queue[CONSOLE_PARSE_SIZE][MAX_CONSOLE_INPUT];
-	unsigned short count;
-} cinput;
-
 #ifdef CONSOLE_INPUT
 struct console_input_interface {
 	/* vars */
@@ -91,6 +86,8 @@ struct console_interface {
 
 struct console_interface *console;
 
+#ifdef HERCULES_CORE
 void console_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_CONSOLE_H */
diff --git a/src/common/core.h b/src/common/core.h
index a8337e1b9..025f636e9 100644
--- a/src/common/core.h
+++ b/src/common/core.h
@@ -13,15 +13,8 @@
 #	include <signal.h>
 #endif
 
-extern int arg_c;
-extern char **arg_v;
-
 #define HERC_UNKNOWN_VER '\x02'
 
-/// @see E_CORE_ST
-extern int runflag;
-extern char *SERVER_NAME;
-
 enum server_types {
 	SERVER_TYPE_UNKNOWN = 0x0,
 	SERVER_TYPE_LOGIN   = 0x1,
@@ -29,13 +22,6 @@ enum server_types {
 	SERVER_TYPE_MAP     = 0x4,
 };
 
-enum server_types SERVER_TYPE;
-
-extern int do_init(int,char**);
-extern void set_server_type(void);
-extern void do_abort(void);
-extern int do_final(void);
-
 /// The main loop continues until runflag is CORE_ST_STOP
 enum E_CORE_ST {
 	CORE_ST_STOP = 0,
@@ -43,8 +29,24 @@ enum E_CORE_ST {
 	CORE_ST_LAST
 };
 
+#ifdef HERCULES_CORE
+extern int arg_c;
+extern char **arg_v;
+
+/// @see E_CORE_ST
+extern int runflag;
+extern char *SERVER_NAME;
+
+enum server_types SERVER_TYPE;
+
+extern int do_init(int,char**);
+extern void set_server_type(void);
+extern void do_abort(void);
+extern int do_final(void);
+
 /// Called when a terminate signal is received. (Ctrl+C pressed)
 /// If NULL, runflag is set to CORE_ST_STOP instead.
 extern void (*shutdown_callback)(void);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_CORE_H */
diff --git a/src/common/db.h b/src/common/db.h
index 88265c3e8..cd61e1543 100644
--- a/src/common/db.h
+++ b/src/common/db.h
@@ -929,6 +929,7 @@ struct linkdb_node {
 
 typedef void (*LinkDBFunc)(void* key, void* data, va_list args);
 
+#ifdef HERCULES_CORE
 void  linkdb_insert  (struct linkdb_node** head, void *key, void* data); // Doesn't take into account duplicate keys
 void  linkdb_replace (struct linkdb_node** head, void *key, void* data); // Takes into account duplicate keys
 void* linkdb_search  (struct linkdb_node** head, void *key);
@@ -936,6 +937,7 @@ void* linkdb_erase   (struct linkdb_node** head, void *key);
 void  linkdb_final   (struct linkdb_node** head);
 void  linkdb_vforeach(struct linkdb_node** head, LinkDBFunc func, va_list ap);
 void  linkdb_foreach (struct linkdb_node** head, LinkDBFunc func, ...);
+#endif // HERCULES_CORE
 
 
 
diff --git a/src/common/des.h b/src/common/des.h
index 2c7190f23..9e6aec4fd 100644
--- a/src/common/des.h
+++ b/src/common/des.h
@@ -8,9 +8,9 @@
 /// One 64-bit block.
 typedef struct BIT64 { uint8_t b[8]; } BIT64;
 
-
+#ifdef HERCULES_CORE
 void des_decrypt_block(BIT64* block);
 void des_decrypt(unsigned char* data, size_t size);
-
+#endif // HERCULES_CORE
 
 #endif // COMMON_DES_H
diff --git a/src/common/ers.h b/src/common/ers.h
index 8c56118ae..85ddfed7a 100644
--- a/src/common/ers.h
+++ b/src/common/ers.h
@@ -148,6 +148,7 @@ typedef struct eri {
 #	define ers_destroy(obj)    ((obj)->destroy(obj))
 #	define ers_chunk_size(obj,size) ((obj)->chunk_size((obj),(size)))
 
+#ifdef HERCULES_CORE
 /**
  * Get a new instance of the manager that handles the specified entry size.
  * Size has to greater than 0.
@@ -173,6 +174,7 @@ void ers_report(void);
  * Clears the remainder of the managers
  **/
 void ers_final(void);
+#endif // HERCULES_CORE
 #endif /* DISABLE_ERS / not DISABLE_ERS */
 
 #endif /* COMMON_ERS_H */
diff --git a/src/common/grfio.h b/src/common/grfio.h
index 15659c17c..adffe0990 100644
--- a/src/common/grfio.h
+++ b/src/common/grfio.h
@@ -4,6 +4,7 @@
 #ifndef COMMON_GRFIO_H
 #define COMMON_GRFIO_H
 
+#ifdef HERCULES_CORE
 void grfio_init(const char* fname);
 void grfio_final(void);
 void* grfio_reads(const char* fname, int* size);
@@ -13,5 +14,6 @@ char* grfio_find_file(const char* fname);
 unsigned long grfio_crc32(const unsigned char *buf, unsigned int len);
 int decode_zip(void* dest, unsigned long* destLen, const void* source, unsigned long sourceLen);
 int encode_zip(void* dest, unsigned long* destLen, const void* source, unsigned long sourceLen);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_GRFIO_H */
diff --git a/src/common/malloc.h b/src/common/malloc.h
index 53d2ebdd2..bc79ac65a 100644
--- a/src/common/malloc.h
+++ b/src/common/malloc.h
@@ -65,8 +65,12 @@
 //void malloc_init (void);
 //void malloc_final (void);
 
+#ifdef HERCULES_CORE
 void malloc_defaults(void);
 
+void memmgr_report(int extra);
+#endif // HERCULES_CORE
+
 struct malloc_interface {
 	void (*init) (void);
 	void (*final) (void);
@@ -85,7 +89,5 @@ struct malloc_interface {
 	void (*post_shutdown) (void);
 };
 
-void memmgr_report (int extra);
-
 struct malloc_interface *iMalloc;
 #endif /* COMMON_MALLOC_H */
diff --git a/src/common/mapindex.h b/src/common/mapindex.h
index 8e552261a..87a275f57 100644
--- a/src/common/mapindex.h
+++ b/src/common/mapindex.h
@@ -96,6 +96,8 @@ struct mapindex_interface {
 
 struct mapindex_interface *mapindex;
 
+#ifdef HERCULES_CORE
 void mapindex_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_MAPINDEX_H */
diff --git a/src/common/md5calc.h b/src/common/md5calc.h
index 740e2edcc..f06a01f4d 100644
--- a/src/common/md5calc.h
+++ b/src/common/md5calc.h
@@ -1,8 +1,10 @@
 #ifndef COMMON_MD5CALC_H
 #define COMMON_MD5CALC_H
 
+#ifdef HERCULES_CORE
 void MD5_String(const char * string, char * output);
 void MD5_Binary(const char * string, unsigned char * output);
 void MD5_Salt(unsigned int len, char * output);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_MD5CALC_H */
diff --git a/src/common/mutex.h b/src/common/mutex.h
index d298c05af..fa8170c98 100644
--- a/src/common/mutex.h
+++ b/src/common/mutex.h
@@ -9,6 +9,7 @@
 typedef struct ramutex ramutex; // Mutex
 typedef struct racond racond; // Condition Var
 
+#ifdef HERCULES_CORE
 /**
  * Creates a Mutex
  *
@@ -88,6 +89,6 @@ void racond_signal(racond *c);
  *  All Waiters getting notified.
  */
 void racond_broadcast(racond *c);
-
+#endif // HERCULES_CORE
 
 #endif /* COMMON_MUTEX_H */
diff --git a/src/common/nullpo.h b/src/common/nullpo.h
index 581252cca..407f45403 100644
--- a/src/common/nullpo.h
+++ b/src/common/nullpo.h
@@ -123,6 +123,8 @@
 	if (Assert_chk(t)) break; else (void)0
 
 
+#ifdef HERCULES_CORE
 void assert_report(const char *file, int line, const char *func, const char *targetname, const char *title);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_NULLPO_H */
diff --git a/src/common/random.h b/src/common/random.h
index 15d7f8ab1..0ca375d28 100644
--- a/src/common/random.h
+++ b/src/common/random.h
@@ -6,6 +6,7 @@
 
 #include "../common/cbasetypes.h"
 
+#ifdef HERCULES_CORE
 void rnd_init(void);
 void rnd_seed(uint32);
 
@@ -14,5 +15,6 @@ uint32 rnd_roll(uint32 dice_faces);// [0, dice_faces)
 int32 rnd_value(int32 min, int32 max);// [min, max]
 double rnd_uniform(void);// [0.0, 1.0)
 double rnd_uniform53(void);// [0.0, 1.0)
+#endif // HERCULES_CORE
 
 #endif /* COMMON_RANDOM_H */
diff --git a/src/common/showmsg.h b/src/common/showmsg.h
index f3fb50257..48e763c25 100644
--- a/src/common/showmsg.h
+++ b/src/common/showmsg.h
@@ -76,11 +76,6 @@
 
 #define CL_SPACE		"           "	// space equivalent of the print messages
 
-extern int stdout_with_ansisequence; //If the color ANSI sequences are to be used. [flaviojs]
-extern int msg_silent; //Specifies how silent the console is. [Skotlex]
-extern int console_msg_log; //Specifies what error messages to log. [Ind]
-extern char timestamp_format[20]; //For displaying Timestamps [Skotlex]
-
 enum msg_type {
 	MSG_NONE,
 	MSG_STATUS,
@@ -93,8 +88,15 @@ enum msg_type {
 	MSG_FATALERROR
 };
 
-extern void ClearScreen(void);
 #ifdef HERCULES_CORE
+extern int stdout_with_ansisequence; //If the color ANSI sequences are to be used. [flaviojs]
+extern int msg_silent; //Specifies how silent the console is. [Skotlex]
+extern int console_msg_log; //Specifies what error messages to log. [Ind]
+extern char timestamp_format[20]; //For displaying Timestamps [Skotlex]
+
+extern void ClearScreen(void);
+extern int vShowMessage_(enum msg_type flag, const char *string, va_list ap);
+
 	extern void ShowMessage(const char *, ...) __attribute__((format(printf, 1, 2)));
 	extern void ShowStatus(const char *, ...) __attribute__((format(printf, 1, 2)));
 	extern void ShowSQL(const char *, ...) __attribute__((format(printf, 1, 2)));
@@ -117,6 +119,4 @@ extern void ClearScreen(void);
 	HPExport void (*ShowFatalError) (const char *, ...) __attribute__((format(printf, 1, 2)));
 #endif
 
-extern int vShowMessage_(enum msg_type flag, const char *string, va_list ap);
-
 #endif /* COMMON_SHOWMSG_H */
diff --git a/src/common/socket.h b/src/common/socket.h
index b9c562a29..6323a6862 100644
--- a/src/common/socket.h
+++ b/src/common/socket.h
@@ -171,7 +171,9 @@ struct socket_interface {
 
 struct socket_interface *sockt;
 
+#ifdef HERCULES_CORE
 void socket_defaults(void);
+#endif // HERCULES_CORE
 
 /* the purpose of these macros is simply to not make calling them be an annoyance */
 #ifndef H_SOCKET_C
diff --git a/src/common/spinlock.h b/src/common/spinlock.h
index 85a78ed33..413067b68 100644
--- a/src/common/spinlock.h
+++ b/src/common/spinlock.h
@@ -39,7 +39,7 @@ typedef struct SPIN_LOCK{
 #endif
 
 
-
+#ifdef HERCULES_CORE
 static forceinline void InitializeSpinLock(SPIN_LOCK *lck){
 		lck->lock = 0;
 		lck->nest = 0;
@@ -93,7 +93,6 @@ static forceinline void LeaveSpinLock(SPIN_LOCK *lck){
 		dropsynclock(&lck->sync_lock);
 }
 
-
-
+#endif // HERCULES_CORE
 
 #endif /* COMMON_SPINLOCK_H */
diff --git a/src/common/sql.h b/src/common/sql.h
index 9a79b3f33..c3598273e 100644
--- a/src/common/sql.h
+++ b/src/common/sql.h
@@ -271,17 +271,21 @@ struct sql_interface {
 
 struct sql_interface *SQL;
 
+#ifdef HERCULES_CORE
 void sql_defaults(void);
 
+void Sql_Init(void);
+
+void Sql_HerculesUpdateCheck(Sql* self);
+void Sql_HerculesUpdateSkip(Sql* self,const char *filename);
+#endif // HERCULES_CORE
+
 #if defined(SQL_REMOVE_SHOWDEBUG)
 #define Sql_ShowDebug(self) (void)0
 #else
 #define Sql_ShowDebug(self) (SQL->ShowDebug_((self), __FILE__, __LINE__))
 #endif
 
-void Sql_HerculesUpdateCheck(Sql* self);
-void Sql_HerculesUpdateSkip(Sql* self,const char *filename);
-
 #if defined(SQL_REMOVE_SHOWDEBUG)
 #define SqlStmt_ShowDebug(self) (void)0
 #else
@@ -289,6 +293,4 @@ void Sql_HerculesUpdateSkip(Sql* self,const char *filename);
 #define SqlStmt_ShowDebug(self) (SQL->StmtShowDebug_((self), __FILE__, __LINE__))
 #endif
 
-void Sql_Init(void);
-
 #endif /* COMMON_SQL_H */
diff --git a/src/common/strlib.h b/src/common/strlib.h
index 0c596cb8f..c687d9e17 100644
--- a/src/common/strlib.h
+++ b/src/common/strlib.h
@@ -156,7 +156,9 @@ struct sv_interface {
 
 struct sv_interface *sv;
 
+#ifdef HERCULES_CORE
 void strlib_defaults(void);
+#endif // HERCULES_CORE
 
 /* the purpose of these macros is simply to not make calling them be an annoyance */
 #ifndef H_STRLIB_C
diff --git a/src/common/sysinfo.h b/src/common/sysinfo.h
index 600206a21..70f665071 100644
--- a/src/common/sysinfo.h
+++ b/src/common/sysinfo.h
@@ -46,6 +46,8 @@ struct sysinfo_interface {
 
 struct sysinfo_interface *sysinfo;
 
+#ifdef HERCULES_CORE
 void sysinfo_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_SYSINFO_H */
diff --git a/src/common/thread.h b/src/common/thread.h
index f00e7290d..f79eb77f9 100644
--- a/src/common/thread.h
+++ b/src/common/thread.h
@@ -16,6 +16,7 @@ typedef enum RATHREAD_PRIO {
 } RATHREAD_PRIO;
 
 
+#ifdef HERCULES_CORE
 /**
  * Creates a new Thread
  *
@@ -109,10 +110,8 @@ RATHREAD_PRIO rathread_prio_get(rAthread *handle);
  */
 void rathread_yield(void);
 
-
-
 void rathread_init(void);
 void rathread_final(void);
-
+#endif // HERCULES_CORE
 
 #endif /* COMMON_THREAD_H */
diff --git a/src/common/timer.h b/src/common/timer.h
index d0927adde..6e8a72389 100644
--- a/src/common/timer.h
+++ b/src/common/timer.h
@@ -65,6 +65,8 @@ struct timer_interface {
 
 struct timer_interface *timer;
 
+#ifdef HERCULES_CORE
 void timer_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_TIMER_H */
diff --git a/src/common/utils.h b/src/common/utils.h
index 421698d95..e6102f184 100644
--- a/src/common/utils.h
+++ b/src/common/utils.h
@@ -13,6 +13,10 @@
 /* [HCache] 1-byte key to ensure our method is the latest, we can modify to ensure the method matches */
 #define HCACHE_KEY 'k'
 
+//Caps values to min/max
+#define cap_value(a, min, max) (((a) >= (max)) ? (max) : ((a) <= (min)) ? (min) : (a))
+
+#ifdef HERCULES_CORE
 // generate a hex dump of the first 'length' bytes of 'buffer'
 void WriteDump(FILE* fp, const void* buffer, size_t length);
 void ShowDump(const void* buffer, size_t length);
@@ -20,9 +24,6 @@ void ShowDump(const void* buffer, size_t length);
 void findfile(const char *p, const char *pat, void (func)(const char*));
 bool exists(const char* filename);
 
-//Caps values to min/max
-#define cap_value(a, min, max) (((a) >= (max)) ? (max) : ((a) <= (min)) ? (min) : (a))
-
 /// calculates the value of A / B, in percent (rounded down)
 unsigned int get_percentage(const unsigned int A, const unsigned int B);
 
@@ -49,6 +50,7 @@ extern float GetFloat(const unsigned char* buf);
 
 size_t hread(void * ptr, size_t size, size_t count, FILE * stream);
 size_t hwrite(const void * ptr, size_t size, size_t count, FILE * stream);
+#endif // HERCULES_CORE
 
 /* [Ind/Hercules] Caching */
 struct HCache_interface {
@@ -63,6 +65,8 @@ struct HCache_interface {
 
 struct HCache_interface *HCache;
 
+#ifdef HERCULES_CORE
 void HCache_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* COMMON_UTILS_H */
diff --git a/src/login/HPMlogin.h b/src/login/HPMlogin.h
index 6bdc0fb7b..6e01eae01 100644
--- a/src/login/HPMlogin.h
+++ b/src/login/HPMlogin.h
@@ -4,6 +4,10 @@
 #ifndef LOGIN_HPMLOGIN_H
 #define LOGIN_HPMLOGIN_H
 
+#ifndef HERCULES_CORE
+#error You should never include HPMlogin.h from a plugin.
+#endif
+
 #include "../common/cbasetypes.h"
 #include "../common/HPM.h"
 
diff --git a/src/login/account.h b/src/login/account.h
index fb7368d69..82ae28bbb 100644
--- a/src/login/account.h
+++ b/src/login/account.h
@@ -13,8 +13,10 @@ typedef struct AccountDB AccountDB;
 typedef struct AccountDBIterator AccountDBIterator;
 
 
+#ifdef HERCULES_CORE
 // standard engines
 AccountDB* account_db_sql(void);
+#endif // HERCULES_CORE
 
 struct mmo_account
 {
@@ -139,9 +141,11 @@ struct AccountDB
 	AccountDBIterator* (*iterator)(AccountDB* self);
 };
 
+#ifdef HERCULES_CORE
 Sql *account_db_sql_up(AccountDB* self);
 
 void mmo_send_accreg2(AccountDB* self, int fd, int account_id, int char_id);
 void mmo_save_accreg2(AccountDB* self, int fd, int account_id, int char_id);
+#endif // HERCULES_CORE
 
 #endif /* LOGIN_ACCOUNT_H */
diff --git a/src/login/ipban.h b/src/login/ipban.h
index b4f3ac51b..c6535ec10 100644
--- a/src/login/ipban.h
+++ b/src/login/ipban.h
@@ -6,6 +6,8 @@
 
 #include "../common/cbasetypes.h"
 
+#ifdef HERCULES_CORE
+// TODO: Interface
 // initialize
 void ipban_init(void);
 
@@ -19,7 +21,7 @@ bool ipban_check(uint32 ip);
 void ipban_log(uint32 ip);
 
 // parses configuration option
-bool ipban_config_read(const char* key, const char* value);
-
+bool ipban_config_read(const char *key, const char* value);
+#endif // HERCULES_CORE
 
 #endif /* LOGIN_IPBAN_H */
diff --git a/src/login/login.h b/src/login/login.h
index 4c9bbd8b7..8a377927b 100644
--- a/src/login/login.h
+++ b/src/login/login.h
@@ -23,7 +23,7 @@ enum E_LOGINSERVER_ST
 
 // supported encryption types: 1- passwordencrypt, 2- passwordencrypt2, 3- both
 #define PASSWORDENC 3
-#define PASSWD_LEN 32+1 // 23+1 for plaintext, 32+1 for md5-ed passwords
+#define PASSWD_LEN (32+1) // 23+1 for plaintext, 32+1 for md5-ed passwords
 
 struct login_session_data {
 	int account_id;
@@ -130,8 +130,10 @@ struct online_login_data {
 #define sex_str2num(str) ( ((str) == 'F') ? SEX_FEMALE : ((str) == 'M') ? SEX_MALE : SEX_SERVER )
 
 #define MAX_SERVERS 30
+#ifdef HERCULES_CORE
 extern struct mmo_char_server server[MAX_SERVERS];
 extern struct Login_Config login_config;
+#endif // HERCULES_CORE
 
 /**
  * Login.c Interface
@@ -202,6 +204,8 @@ struct login_interface {
 
 struct login_interface *login;
 
+#ifdef HERCULES_CORE
 void login_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* LOGIN_LOGIN_H */
diff --git a/src/login/loginlog.h b/src/login/loginlog.h
index 52e18f3d1..2104ff277 100644
--- a/src/login/loginlog.h
+++ b/src/login/loginlog.h
@@ -6,10 +6,13 @@
 
 #include "../common/cbasetypes.h"
 
+#ifdef HERCULES_CORE
+// TODO: Interface
 unsigned long loginlog_failedattempts(uint32 ip, unsigned int minutes);
 void login_log(uint32 ip, const char* username, int rcode, const char* message);
 bool loginlog_init(void);
 bool loginlog_final(void);
 bool loginlog_config_read(const char* w1, const char* w2);
+#endif // HERCULES_CORE
 
 #endif /* LOGIN_LOGINLOG_H */
diff --git a/src/map/HPMmap.h b/src/map/HPMmap.h
index fa2f625c0..0c727d017 100644
--- a/src/map/HPMmap.h
+++ b/src/map/HPMmap.h
@@ -4,6 +4,10 @@
 #ifndef MAP_HPMMAP_H
 #define MAP_HPMMAP_H
 
+#ifndef HERCULES_CORE
+#error You should never include HPMmap.h from a plugin.
+#endif
+
 #include "../common/cbasetypes.h"
 #include "../map/atcommand.h"
 #include "../common/HPM.h"
diff --git a/src/map/atcommand.h b/src/map/atcommand.h
index 356487bd1..8d0399f25 100644
--- a/src/map/atcommand.h
+++ b/src/map/atcommand.h
@@ -116,7 +116,9 @@ struct atcommand_interface {
 
 struct atcommand_interface *atcommand;
 
+#ifdef HERCULES_CORE
 void atcommand_defaults(void);
+#endif // HERCULES_CORE
 
 /* stay here */
 #define ACMD(x) static bool atcommand_ ## x (const int fd, struct map_session_data* sd, const char* command, const char* message, struct AtCommandInfo *info)
diff --git a/src/map/battle.h b/src/map/battle.h
index ea2538c30..ddd98ec69 100644
--- a/src/map/battle.h
+++ b/src/map/battle.h
@@ -487,7 +487,9 @@ struct Battle_Config {
 	int feature_roulette;
 };
 
+#ifdef HERCULES_CORE
 extern struct Battle_Config battle_config;
+#endif // HERCULES_CORE
 
 /* criteria for battle_config.idletime_critera */
 enum e_battle_config_idletime {
@@ -620,5 +622,8 @@ struct battle_interface {
 
 struct battle_interface *battle;
 
+#ifdef HERCULES_CORE
 void battle_defaults(void);
+#endif // HERCULES_CORE
+
 #endif /* MAP_BATTLE_H */
diff --git a/src/map/battleground.h b/src/map/battleground.h
index c1d3be054..9878d6be0 100644
--- a/src/map/battleground.h
+++ b/src/map/battleground.h
@@ -120,6 +120,8 @@ struct battleground_interface {
 
 struct battleground_interface *bg;
 
+#ifdef HERCULES_CORE
 void battleground_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_BATTLEGROUND_H */
diff --git a/src/map/buyingstore.h b/src/map/buyingstore.h
index c981cc444..7b8e369d2 100644
--- a/src/map/buyingstore.h
+++ b/src/map/buyingstore.h
@@ -73,6 +73,8 @@ struct buyingstore_interface {
 
 struct buyingstore_interface *buyingstore;
 
+#ifdef HERCULES_CORE
 void buyingstore_defaults (void);
+#endif // HERCULES_CORE
 
 #endif  // MAP_BUYINGSTORE_H
diff --git a/src/map/chat.h b/src/map/chat.h
index 6fca018f4..ced216b41 100644
--- a/src/map/chat.h
+++ b/src/map/chat.h
@@ -57,6 +57,8 @@ struct chat_interface {
 
 struct chat_interface *chat;
 
+#ifdef HERCULES_CORE
 void chat_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_CHAT_H */
diff --git a/src/map/chrif.h b/src/map/chrif.h
index 2ef4d0eb5..271fc076d 100644
--- a/src/map/chrif.h
+++ b/src/map/chrif.h
@@ -40,6 +40,8 @@ struct auth_node {
 	enum sd_state state;             //To track whether player was login in/out or changing maps.
 };
 
+#define chrif_char_offline(x) chrif->char_offline_nsd((x)->status.account_id,(x)->status.char_id)
+
 /*=====================================
 * Interface : chrif.h
 * Generated by HerculesInterfaceMaker
@@ -150,8 +152,8 @@ struct chrif_interface {
 
 struct chrif_interface *chrif;
 
+#ifdef HERCULES_CORE
 void chrif_defaults(void);
-// There's no need for another function when a simple macro can do exactly the same effect
-#define chrif_char_offline(x) chrif->char_offline_nsd((x)->status.account_id,(x)->status.char_id)
+#endif // HERCULES_CORE
 
 #endif /* MAP_CHRIF_H */
diff --git a/src/map/clif.h b/src/map/clif.h
index 4c90a3a28..3144f1586 100644
--- a/src/map/clif.h
+++ b/src/map/clif.h
@@ -1337,6 +1337,8 @@ struct clif_interface {
 
 struct clif_interface *clif;
 
+#ifdef HERCULES_CORE
 void clif_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_CLIF_H */
diff --git a/src/map/date.h b/src/map/date.h
index c3f353f64..a57d8132c 100644
--- a/src/map/date.h
+++ b/src/map/date.h
@@ -6,6 +6,8 @@
 
 #include "../common/cbasetypes.h"
 
+#ifdef HERCULES_CORE
+// TODO: Interface
 int date_get_year(void);
 int date_get_month(void);
 int date_get_day(void);
@@ -16,5 +18,6 @@ int date_get_sec(void);
 bool is_day_of_sun(void);
 bool is_day_of_moon(void);
 bool is_day_of_star(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_DATE_H */
diff --git a/src/map/duel.h b/src/map/duel.h
index 5466f3b43..fa12a4032 100644
--- a/src/map/duel.h
+++ b/src/map/duel.h
@@ -44,6 +44,8 @@ struct duel_interface {
 
 struct duel_interface *duel;
 
+#ifdef HERCULES_CORE
 void duel_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_DUEL_H */
diff --git a/src/map/elemental.h b/src/map/elemental.h
index ca13c30b8..8015f84c0 100644
--- a/src/map/elemental.h
+++ b/src/map/elemental.h
@@ -119,6 +119,8 @@ struct elemental_interface {
 
 struct elemental_interface *elemental;
 
+#ifdef HERCULES_CORE
 void elemental_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_ELEMENTAL_H */
diff --git a/src/map/guild.h b/src/map/guild.h
index eb6de7070..a75b8a7a5 100644
--- a/src/map/guild.h
+++ b/src/map/guild.h
@@ -165,6 +165,8 @@ struct guild_interface {
 
 struct guild_interface *guild;
 
+#ifdef HERCULES_CORE
 void guild_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_GUILD_H */
diff --git a/src/map/homunculus.h b/src/map/homunculus.h
index 5b1fd2031..18f8728d3 100644
--- a/src/map/homunculus.h
+++ b/src/map/homunculus.h
@@ -157,6 +157,8 @@ struct homunculus_interface {
 
 struct homunculus_interface *homun;
 
+#ifdef HERCULES_CORE
 void homunculus_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_HOMUNCULUS_H */
diff --git a/src/map/instance.h b/src/map/instance.h
index 4848c9c59..80bd1f012 100644
--- a/src/map/instance.h
+++ b/src/map/instance.h
@@ -86,6 +86,8 @@ struct instance_interface {
 
 struct instance_interface *instance;
 
+#ifdef HERCULES_CORE
 void instance_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_INSTANCE_H */
diff --git a/src/map/intif.h b/src/map/intif.h
index fe47d6537..52aa32259 100644
--- a/src/map/intif.h
+++ b/src/map/intif.h
@@ -184,6 +184,8 @@ struct intif_interface {
 
 struct intif_interface *intif;
 
+#ifdef HERCULES_CORE
 void intif_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_INTIF_H */
diff --git a/src/map/irc-bot.h b/src/map/irc-bot.h
index 0c26c3cd8..23c2fabc8 100644
--- a/src/map/irc-bot.h
+++ b/src/map/irc-bot.h
@@ -61,6 +61,8 @@ struct irc_bot_interface {
 
 struct irc_bot_interface *ircbot;
 
+#ifdef HERCULES_CORE
 void ircbot_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_IRC_BOT_H */
diff --git a/src/map/itemdb.h b/src/map/itemdb.h
index 902e6e5e9..1d811e3cb 100644
--- a/src/map/itemdb.h
+++ b/src/map/itemdb.h
@@ -621,6 +621,8 @@ struct itemdb_interface {
 
 struct itemdb_interface *itemdb;
 
+#ifdef HERCULES_CORE
 void itemdb_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_ITEMDB_H */
diff --git a/src/map/log.h b/src/map/log.h
index fb61b6e66..b4b8b84f4 100644
--- a/src/map/log.h
+++ b/src/map/log.h
@@ -131,6 +131,8 @@ struct log_interface {
 
 struct log_interface *logs;
 
+#ifdef HERCULES_CORE
 void log_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_LOG_H */
diff --git a/src/map/mail.h b/src/map/mail.h
index 64b0f9779..db49ca39e 100644
--- a/src/map/mail.h
+++ b/src/map/mail.h
@@ -25,6 +25,8 @@ struct mail_interface {
 
 struct mail_interface *mail;
 
+#ifdef HERCULES_CORE
 void mail_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_MAIL_H */
diff --git a/src/map/map.h b/src/map/map.h
index 447437cf4..f5f85f334 100644
--- a/src/map/map.h
+++ b/src/map/map.h
@@ -1078,6 +1078,8 @@ struct map_interface {
 
 struct map_interface *map;
 
+#ifdef HERCULES_CORE
 void map_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_MAP_H */
diff --git a/src/map/mapreg.h b/src/map/mapreg.h
index 59d226cda..9c9a1acee 100644
--- a/src/map/mapreg.h
+++ b/src/map/mapreg.h
@@ -48,6 +48,8 @@ struct mapreg_interface {
 
 struct mapreg_interface *mapreg;
 
+#ifdef HERCULES_CORE
 void mapreg_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_MAPREG_H */
diff --git a/src/map/mercenary.h b/src/map/mercenary.h
index 68f60b08b..fbf3603f6 100644
--- a/src/map/mercenary.h
+++ b/src/map/mercenary.h
@@ -97,6 +97,8 @@ struct mercenary_interface {
 
 struct mercenary_interface *mercenary;
 
+#ifdef HERCULES_CORE
 void mercenary_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_MERCENARY_H */
diff --git a/src/map/mob.h b/src/map/mob.h
index 9aac2c664..02ae1630a 100644
--- a/src/map/mob.h
+++ b/src/map/mob.h
@@ -382,6 +382,8 @@ struct mob_interface {
 
 struct mob_interface *mob;
 
+#ifdef HERCULES_CORE
 void mob_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_MOB_H */
diff --git a/src/map/npc.h b/src/map/npc.h
index b0014e323..68d683847 100644
--- a/src/map/npc.h
+++ b/src/map/npc.h
@@ -281,7 +281,9 @@ struct npc_interface {
 
 struct npc_interface *npc;
 
+#ifdef HERCULES_CORE
 void npc_defaults(void);
+#endif // HERCULES_CORE
 
 
 /* comes from npc_chat.c */
@@ -347,7 +349,9 @@ struct pcre_interface *libpcre;
 /**
  * Also defaults libpcre
  **/
+#ifdef HERCULES_CORE
 void npc_chat_defaults(void);
-#endif
+#endif // HERCULES_CORE
+#endif // PCRE_SUPPORT
 
 #endif /* MAP_NPC_H */
diff --git a/src/map/party.h b/src/map/party.h
index f6cd448a6..a541d03cb 100644
--- a/src/map/party.h
+++ b/src/map/party.h
@@ -141,6 +141,8 @@ struct party_interface {
 
 struct party_interface *party;
 
+#ifdef HERCULES_CORE
 void party_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_PARTY_H */
diff --git a/src/map/path.h b/src/map/path.h
index 4b71f2189..eb42df6d0 100644
--- a/src/map/path.h
+++ b/src/map/path.h
@@ -55,6 +55,8 @@ struct path_interface {
 
 struct path_interface *path;
 
+#ifdef HERCULES_CORE
 void path_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_PATH_H */
diff --git a/src/map/pc.h b/src/map/pc.h
index 1f5e26270..7e2fa8558 100644
--- a/src/map/pc.h
+++ b/src/map/pc.h
@@ -1024,6 +1024,8 @@ struct pc_interface {
 
 struct pc_interface *pc;
 
+#ifdef HERCULES_CORE
 void pc_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_PC_H */
diff --git a/src/map/pc_groups.h b/src/map/pc_groups.h
index 48ff782dd..8dd95a177 100644
--- a/src/map/pc_groups.h
+++ b/src/map/pc_groups.h
@@ -98,6 +98,8 @@ struct pc_groups_interface {
 
 struct pc_groups_interface *pcg;
 
+#ifdef HERCULES_CORE
 void pc_groups_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_PC_GROUPS_H */
diff --git a/src/map/pet.h b/src/map/pet.h
index cffcf7dd0..0b51bcb16 100644
--- a/src/map/pet.h
+++ b/src/map/pet.h
@@ -155,6 +155,8 @@ struct pet_interface {
 
 struct pet_interface *pet;
 
+#ifdef HERCULES_CORE
 void pet_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_PET_H */
diff --git a/src/map/quest.h b/src/map/quest.h
index 9d617e369..f988d0c61 100644
--- a/src/map/quest.h
+++ b/src/map/quest.h
@@ -50,6 +50,8 @@ struct quest_interface {
 
 struct quest_interface *quest;
 
+#ifdef HERCULES_CORE
 void quest_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_QUEST_H */
diff --git a/src/map/script.h b/src/map/script.h
index 548c0f261..ad63c1ad7 100644
--- a/src/map/script.h
+++ b/src/map/script.h
@@ -716,6 +716,8 @@ struct script_interface {
 
 struct script_interface *script;
 
+#ifdef HERCULES_CORE
 void script_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_SCRIPT_H */
diff --git a/src/map/searchstore.h b/src/map/searchstore.h
index d8abde615..6664eddfa 100644
--- a/src/map/searchstore.h
+++ b/src/map/searchstore.h
@@ -97,6 +97,8 @@ struct searchstore_interface {
 
 struct searchstore_interface *searchstore;
 
-void searchstore_defaults (void);
+#ifdef HERCULES_CORE
+void searchstore_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_SEARCHSTORE_H */
diff --git a/src/map/skill.h b/src/map/skill.h
index 6cb43405f..c0456a6d8 100644
--- a/src/map/skill.h
+++ b/src/map/skill.h
@@ -2079,6 +2079,8 @@ struct skill_interface {
 
 struct skill_interface *skill;
 
+#ifdef HERCULES_CORE
 void skill_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_SKILL_H */
diff --git a/src/map/status.h b/src/map/status.h
index 63f9854d5..f281a4d08 100644
--- a/src/map/status.h
+++ b/src/map/status.h
@@ -2122,6 +2122,8 @@ struct status_interface {
 
 struct status_interface *status;
 
+#ifdef HERCULES_CORE
 void status_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_STATUS_H */
diff --git a/src/map/storage.h b/src/map/storage.h
index fcf9a52e4..6393e124a 100644
--- a/src/map/storage.h
+++ b/src/map/storage.h
@@ -56,7 +56,9 @@ struct guild_storage_interface {
 
 struct guild_storage_interface *gstorage;
 
+#ifdef HERCULES_CORE
 void storage_defaults(void);
 void gstorage_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_STORAGE_H */
diff --git a/src/map/trade.h b/src/map/trade.h
index f91ccd4a2..85e73025c 100644
--- a/src/map/trade.h
+++ b/src/map/trade.h
@@ -25,6 +25,8 @@ struct trade_interface {
 
 struct trade_interface *trade;
 
+#ifdef HERCULES_CORE
 void trade_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_TRADE_H */
diff --git a/src/map/vending.h b/src/map/vending.h
index 63cb632a9..00d3eefff 100644
--- a/src/map/vending.h
+++ b/src/map/vending.h
@@ -34,6 +34,8 @@ struct vending_interface {
 
 struct vending_interface *vending;
 
+#ifdef HERCULES_CORE
 void vending_defaults(void);
+#endif // HERCULES_CORE
 
 #endif /* MAP_VENDING_H */