From: Tobias Brunner <tobias@strongswan.org>
Date: Wed, 10 Jan 2024 17:04:32 +0000 (+0100)
Subject: Suppress compiler warnings with specific bison and compiler combinations
X-Git-Tag: android-2.5.0~22
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=67f09905305c93620f552b8f9084b5df40e920cf;p=thirdparty%2Fstrongswan.git

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.
---

diff --git a/src/libstrongswan/settings/settings_parser.y b/src/libstrongswan/settings/settings_parser.y
index a231d959cb..ce67a8c5b6 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 654632bc1d..e1188babcd 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;
 	}
 	;