From 67f09905305c93620f552b8f9084b5df40e920cf Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Wed, 10 Jan 2024 18:04:32 +0100
Subject: [PATCH] Suppress compiler warnings with specific bison and compiler
 combinations

Bison generates code that only increases the yynerrs counter, it's never
read.  This causes a warning in newer compilers (in particular clang).
Newer versions of bison mark yynerrs with __attribute__((unused)), but
at least on FreeBSD 14 that's not yet available.
---
 src/libstrongswan/settings/settings_parser.y | 2 ++
 src/starter/parser/parser.y                  | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/libstrongswan/settings/settings_parser.y b/src/libstrongswan/settings/settings_parser.y
index a231d959c..ce67a8c5b 100644
--- a/src/libstrongswan/settings/settings_parser.y
+++ b/src/libstrongswan/settings/settings_parser.y
@@ -193,6 +193,8 @@ value:
 		}
 		free($1);
 		free($2);
+		/* suppress compiler warning */
+		(void)yynerrs;
 	}
 	;
 
diff --git a/src/starter/parser/parser.y b/src/starter/parser/parser.y
index 654632bc1..e1188babc 100644
--- a/src/starter/parser/parser.y
+++ b/src/starter/parser/parser.y
@@ -201,6 +201,8 @@ value:
 		}
 		free($1);
 		free($2);
+		/* suppress compiler warning */
+		(void)yynerrs;
 	}
 	;