Use __cdecl instead of _cdecl.

src/xpdev/dirwrap.c

@@ -150,7 +150,7 @@ void DLLCALL _splitpath(const char *path, char *drive, char *dir, char *fname, c
 /* This code _may_ work on other DOS-based platforms (e.g. OS/2)			*/
 /****************************************************************************/
 #if !defined(__unix__)
-static int _cdecl glob_compare( const void *arg1, const void *arg2 )
+static int __cdecl glob_compare( const void *arg1, const void *arg2 )
 {
    /* Compare all of both strings: */
    return stricmp( * ( char** ) arg1, * ( char** ) arg2 );

src/xpdev/str_list.c

@@ -334,7 +334,7 @@ char* DLLCALL strListCombine(str_list_t list, char* buf, size_t maxlen, const ch
 }
 
 #if defined(_WIN32)
-	#define QSORT_CALLBACK_TYPE	_cdecl
+	#define QSORT_CALLBACK_TYPE	__cdecl
 #else
 	#define QSORT_CALLBACK_TYPE
 #endif