From 0511e285f3c886a388b8e9c6a4829752d60ab44c Mon Sep 17 00:00:00 2001
From: Rudi Heitbaum <rudi@heitbaum.com>
Date: Thu, 5 Dec 2024 06:47:40 +0000
Subject: [PATCH] Fix declarations to allow build with gcc 15

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>

Upstream-Status: Backport [690342b Fix declarations to allow build with gcc 15]
---
 lib/grammar.y | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/grammar.y b/lib/grammar.y
index 87dac00..0e9d0bb 100644
--- a/lib/grammar.y
+++ b/lib/grammar.y
@@ -40,8 +40,7 @@
 #include "wincompat.h"
 
 /* These declarations are provided to suppress compiler warnings. */
-extern int libconfig_yylex();
-extern int libconfig_yyget_lineno();
+extern int libconfig_yyget_lineno(void *);
 
 static const char *err_array_elem_type = "mismatched element type in array";
 static const char *err_duplicate_setting = "duplicate setting name";
@@ -80,6 +79,11 @@ void libconfig_yyerror(void *scanner, struct parse_context *ctx,
   char *sval;
 }
 
+%{
+/* These declarations are provided to suppress compiler warnings. */
+extern int libconfig_yylex(YYSTYPE *, void *);
+%}
+
 %token <ival> TOK_BOOLEAN TOK_INTEGER TOK_HEX
 %token <llval> TOK_INTEGER64 TOK_HEX64
 %token <fval> TOK_FLOAT
