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 a231d959cb2193df644a9dcb1d411b64d427cb0e..ce67a8c5b671e0097281773a9e206456f01932ed 100644 (file)
--- 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 654632bc1d17a45d7c435e7029e8adc0b9513c92..e1188babcdd6580c876d73108cbad86a7eea05ad 100644 (file)
--- 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;
        }
        ;