Fixed compile errors on very old PACKETVERs

- Fixes #903 and other similar problems

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

3 files changed, 11 insertions, 6 deletions

diff --git a/src/common/cbasetypes.h b/src/common/cbasetypes.h
index 64f21f7e0..5fc08b770 100644
--- a/src/common/cbasetypes.h
+++ b/src/common/cbasetypes.h
@@ -428,4 +428,7 @@ typedef char bool;
 #define ZEROED_BLOCK_POS(x) (&(x)->HERC__zeroed_block_BEGIN)
 #define ZEROED_BLOCK_SIZE(x) ((char*)&((x)->HERC__zeroed_block_END) - (char*)&((x)->HERC__zeroed_block_BEGIN) + sizeof((x)->HERC__zeroed_block_END))
 
+/** Support macros for marking structs as unavailable */
+#define UNAVAILABLE_STRUCT int8 HERC__unavailable_struct
+
 #endif /* COMMON_CBASETYPES_H */
diff --git a/src/common/console.h b/src/common/console.h
index ef6db0cb4..102a1beaf 100644
--- a/src/common/console.h
+++ b/src/common/console.h
@@ -50,8 +50,8 @@ struct CParseEntry {
 	} u;
 };
 
-#ifdef CONSOLE_INPUT
 struct console_input_interface {
+#ifdef CONSOLE_INPUT
 	/* vars */
 	SPIN_LOCK ptlock;/* parse thread lock */
 	rAthread *pthread;/* parse thread */
@@ -75,10 +75,10 @@ struct console_input_interface {
 	void (*parse_list_subs) (struct CParseEntry *cmd, unsigned char depth);
 	void (*addCommand) (char *name, CParseFunc func);
 	void (*setSQL) (Sql *SQL_handle);
-};
-#else
-struct console_input_interface;
+#else // not CONSOLE_INPUT
+	UNAVAILABLE_STRUCT;
 #endif
+};
 
 struct console_interface {
 	void (*init) (void);
diff --git a/src/common/mmo.h b/src/common/mmo.h
index 73d4510a1..095b96341 100644
--- a/src/common/mmo.h
+++ b/src/common/mmo.h
@@ -462,13 +462,15 @@ struct s_friend {
 	char name[NAME_LENGTH];
 };
 
-#ifdef HOTKEY_SAVING
 struct hotkey {
+#ifdef HOTKEY_SAVING
 	unsigned int id;
 	unsigned short lv;
 	unsigned char type; // 0: item, 1: skill
-};
+#else // not HOTKEY_SAVING
+	UNAVAILABLE_STRUCT;
 #endif
+};
 
 struct mmo_charstatus {
 	int char_id;