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Make c-exp.y work with Bison 3.8+

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When using Bison 3.8, we get this error:

    ../../gdb/c-exp.y:3455:1: error: 'void c_print_token(FILE*, int, YYSTYPE)' defined but not used [-Werror=unused-function]

That's because bison 3.8 removed YYPRINT support:
https://savannah.gnu.org/forum/forum.php?forum_id=10047

Accordingly, this patch only defines that function for Bison < 3.8.

Change-Id: I3cbf2f317630bb72810b00f2d9b2c4b99fa812ad
This commit is contained in:
Christian Biesinger
2021-10-08 16:09:46 -04:00
committed by Simon Marchi
parent e43321cab2
commit 6d81986879
1 changed files with 3 additions and 2 deletions
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gdb/c-exp.y
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@ -167,7 +167,7 @@ static struct stoken operator_stoken (const char *);
static struct stoken typename_stoken (const char *); static struct stoken typename_stoken (const char *);
static void check_parameter_typelist (std::vector<struct type *> *); static void check_parameter_typelist (std::vector<struct type *> *);
#ifdef YYBISON #if defined(YYBISON) && YYBISON < 30800
static void c_print_token (FILE *file, int type, YYSTYPE value); static void c_print_token (FILE *file, int type, YYSTYPE value);
#define YYPRINT(FILE, TYPE, VALUE) c_print_token (FILE, TYPE, VALUE) #define YYPRINT(FILE, TYPE, VALUE) c_print_token (FILE, TYPE, VALUE)
#endif #endif
@ -3446,7 +3446,8 @@ c_parse (struct parser_state *par_state)
return result; return result;
} }
#ifdef YYBISON #if defined(YYBISON) && YYBISON < 30800
/* This is called via the YYPRINT macro when parser debugging is /* This is called via the YYPRINT macro when parser debugging is
enabled. It prints a token's value. */ enabled. It prints a token's value. */