Fix build on FreeBSD. This patch was submitted upstream:

http://lists.acpica.org/pipermail/devel/2011-April/000253.html

Similar fixes will show up in the next ACPICA release.

compiler/dtparser.l

@@ -130,4 +130,4 @@ DtTerminateLexer (
 {
 
     yy_delete_buffer (LexBuffer);
-}
+}

compiler/dtparser.y

@@ -53,7 +53,8 @@
 
 UINT64                  DtParserResult;    /* Global for expression return value */
 
-int DtParserlex (void); /* TBD: not sure why this is needed */
+int DtParserlex (void);
+int DtParserparse (void);
 extern char*            DtParsertext;
 extern void             DtParsererror (char const * msg);
 #define YYFLAG          -32768
@@ -171,7 +172,7 @@ extern DT_FIELD                 *Gbl_CurrentField;
 #define PR_YYTNAME_START        3
 
 #ifdef _USE_BERKELEY_YACC
-#define yytname DtParsername[];
+#define yytname DtParsername
 #endif