[Xen-devel] [PATCH 4.4 2/2] libxl: Fix building libxlu_cfg_y.y with bison 3.0

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

From: Ed Swierk <eswierk@xxxxxxxxxxxxxxxxxx>

- Use %lex-param instead of obsolete YYLEX_PARAM to override lex scanner
  parameter
- Change deprecated %name-prefix= to %name-prefix

Tested against bison 2.4.1 and 3.0.2.

This is expected to sometimes (depending on timestamps and whether the
bison input files are edited) break building on systems with ancient
versions of bison.  Bison 2.4.1 is known to work and was released in
December 2008.

Also, consquentially, regenerate bison output files with bison
1:2.5.dfsg-2.1 from Debian wheezy.

Signed-off-by: Ed Swierk <eswierk@xxxxxxxxxxxxxxxxxx>
Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Tested-by: Wei Liu <wei.liu2@xxxxxxxxxx>
Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Release-Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

(cherry picked from commit 7ba4cdfadd4f3c45d65ffe50e621759f458fedc0)

[ I have checked that rebuilding the bison and flex input produces no
  further changes. -iwj ]

Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 tools/libxl/libxlu_cfg_y.c |    4 ++--
 tools/libxl/libxlu_cfg_y.y |    6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/libxl/libxlu_cfg_y.c b/tools/libxl/libxlu_cfg_y.c
index 4437e05..07b5a1d 100644
--- a/tools/libxl/libxlu_cfg_y.c
+++ b/tools/libxl/libxlu_cfg_y.c
@@ -76,7 +76,7 @@
 /* Line 268 of yacc.c  */
 #line 19 "libxlu_cfg_y.y"
 
-#define YYLEX_PARAM ctx->scanner
+#define ctx_scanner ctx->scanner
 #include "libxlu_cfg_i.h"
 #include "libxlu_cfg_l.h"
 
@@ -656,7 +656,7 @@ while (YYID (0))
 #ifdef YYLEX_PARAM
 # define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM)
 #else
-# define YYLEX yylex (&yylval, &yylloc, scanner)
+# define YYLEX yylex (&yylval, &yylloc, ctx_scanner)
 #endif
 
 /* Enable debugging if requested.  */
diff --git a/tools/libxl/libxlu_cfg_y.y b/tools/libxl/libxlu_cfg_y.y
index aa9f787..5acd438 100644
--- a/tools/libxl/libxlu_cfg_y.y
+++ b/tools/libxl/libxlu_cfg_y.y
@@ -17,7 +17,7 @@
  */
 
 %{
-#define YYLEX_PARAM ctx->scanner
+#define ctx_scanner ctx->scanner
 #include "libxlu_cfg_i.h"
 #include "libxlu_cfg_l.h"
 %}
@@ -31,9 +31,9 @@
 %pure-parser
 %defines
 %error-verbose
-%name-prefix="xlu__cfg_yy"
+%name-prefix "xlu__cfg_yy"
 %parse-param { CfgParseContext *ctx }
-%lex-param { void *scanner }
+%lex-param { ctx_scanner }
 
 %token <string>                IDENT STRING NUMBER NEWLINE
 %type <string>            atom
-- 
1.7.10.4


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