__attribute__((sentinel)) is first available in GCC 4.

[cparser] / parser.c

diff --git a/parser.c b/parser.c
index b6d0f4a..84891eb 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -582,7 +582,10 @@ static void eat_statement(void) {
 /**
  * Report a parse error because an expected token was not found.
  */
-static __attribute__((sentinel))
+static
+#if defined __GNUC__ && __GNUC__ >= 4
+__attribute__((sentinel))
+#endif
 void parse_error_expected(const char *message, ...)
 {
        if(message != NULL) {