Eliminate even more warnings and bump warning level to 3

Shouldn't need to go any higher, level 4+ gives insane warnings

src/common/cfgfiles.c

@@ -29,6 +29,7 @@
 #include "fe.h"
 #include "text.h"
 #include "hexchatc.h"
+#include "typedef.h"
 
 #ifdef WIN32
 #include <io.h>

src/common/ignore.c

@@ -36,6 +36,7 @@
 #include "text.h"
 #include "util.h"
 #include "hexchatc.h"
+#include "typedef.h"
 
 
 int ignored_ctcp = 0;			  /* keep a count of all we ignore */

src/common/plugin.c

@@ -44,6 +44,7 @@
 typedef struct session hexchat_context;
 #include "hexchat-plugin.h"
 #include "plugin.h"
+#include "typedef.h"
 
 
 #include "hexchatc.h"

src/common/text.c

@@ -43,6 +43,7 @@
 #include "outbound.h"
 #include "hexchatc.h"
 #include "text.h"
+#include "typedef.h"
 #ifdef WIN32
 #include <windows.h>
 #endif

src/common/typedef.h

@@ -1,3 +1,8 @@
+#ifndef HEXCHAT_TYPEDEF_H
+#define HEXCHAT_TYPEDEF_H
+
+#ifdef WIN32
+
 #ifndef SSIZE_T_DEFINED
 #ifdef ssize_t
 #undef ssize_t
@@ -9,3 +14,12 @@ typedef _W64 int         ssize_t;
 #endif
 #define SSIZE_T_DEFINED
 #endif
+
+#ifndef fstat
+#define fstat _fstat
+#define stat _stat
+#endif
+
+#endif
+
+#endif