update to acpica-unix2-20140114
acpica-unix2-20130823
PANKOVs restructure

@@ -3,11 +3,11 @@
  * Name: accygwin.h - OS specific defines, etc. for cygwin environment
  *
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2014, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:

@@ -48,10 +48,11 @@
  * ACPICA configuration
  */
 #define ACPI_USE_SYSTEM_CLIBRARY
 #define ACPI_USE_DO_WHILE_0
 #define ACPI_FLUSH_CPU_CACHE()
+
 /*
  * This is needed since sem_timedwait does not appear to work properly
  * on cygwin (always hangs forever).
  */
 #define ACPI_USE_ALTERNATE_TIMEOUT

@@ -87,6 +88,15 @@
 
 /* Cygwin uses GCC */
 
 #include "acgcc.h"
 
+
+/*
+ * The vsnprintf function is defined by c99, but cygwin/gcc does not
+ * enable this prototype when the -ansi flag is set. Also related to
+ * __STRICT_ANSI__. So, we just declare the prototype here.
+ */
+int
+vsnprintf (char *s, size_t n, const char *format, va_list ap);
+
 #endif /* __ACCYGWIN_H__ */