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-rw-r--r--debug/warning-nop.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/debug/warning-nop.c b/debug/warning-nop.c
index b4ebbac4dd..8f2f66e16a 100644
--- a/debug/warning-nop.c
+++ b/debug/warning-nop.c
@@ -37,4 +37,17 @@ nop (void)
 /* Following here we need an #include for each public header file
    that uses __warndecl.  */
 
+/* Define away to avoid warnings with compilers that do not have these
+   builtins.  */
+#define __builtin___memcpy_chk(dest, src, len, bos) NULL
+#define __builtin___memmove_chk(dest, src, len, bos) NULL
+#define __builtin___mempcpy_chk(dest, src, len, bos) NULL
+#define __builtin___memset_chk(dest, ch, len, bos) NULL
+#define __builtin___stpcpy_chk(dest, src, bos) NULL
+#define __builtin___strcat_chk(dest, src, bos) NULL
+#define __builtin___strcpy_chk(dest, src, bos) NULL
+#define __builtin___strncat_chk(dest, src, len, bos) NULL
+#define __builtin___strncpy_chk(dest, src, len, bos) NULL
+#define __builtin_object_size(bos, level) 0
+
 #include <string.h>