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-rw-r--r--string/tester.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/string/tester.c b/string/tester.c
index f7d4bac..824cf31 100644
--- a/string/tester.c
+++ b/string/tester.c
@@ -34,6 +34,14 @@
DIAG_IGNORE_NEEDS_COMMENT (8, "-Wstringop-truncation");
#endif
+/* When building with fortify enabled, GCC < 12 issues a warning on the
+ fortify strncat wrapper might overflow the destination buffer (the
+ failure is tied to -Werror).
+ Triggered by strncat fortify wrapper when it is enabled. */
+#if __GNUC_PREREQ (11, 0)
+DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overread");
+#endif
+
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
@@ -52,9 +60,6 @@ DIAG_IGNORE_NEEDS_COMMENT (5.0, "-Wmemset-transposed-args");
DIAG_IGNORE_NEEDS_COMMENT (9, "-Wrestrict");
DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow=");
#endif
-#if __GNUC_PREREQ (11, 0)
-DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overread");
-#endif
#define STREQ(a, b) (strcmp((a), (b)) == 0)