1 files changed, 15 insertions, 2 deletions
diff --git a/gcc/c-format.h b/gcc/c-format.h
index 90cbb17..6f74354 100644
--- a/gcc/c-format.h
+++ b/gcc/c-format.h
@@ -80,12 +80,13 @@ enum
      of whether length modifiers can occur (length_char_specs).  */
 };
 
-
 /* Structure describing a length modifier supported in format checking, and
    possibly a doubled version such as "hh".  */
 typedef struct
 {
-  /* Name of the single-character length modifier.  */
+  /* Name of the single-character length modifier. If prefixed by
+     a zero character, it describes a multi character length
+     modifier, like I64, I32, etc.  */
   const char *name;
   /* Index into a format_char_info.types array.  */
   enum format_lengths index;
@@ -306,4 +307,16 @@ typedef struct
 #define T_D128  &dfloat128_type_node
 #define TEX_D128 { STD_EXT, "_Decimal128", T_D128 }
 
+/* Structure describing how format attributes such as "printf" are
+   interpreted as "gnu_printf" or "ms_printf" on a particular system.
+   TARGET_OVERRIDES_FORMAT_ATTRIBUTES is used to specify target-specific
+   defaults.  */
+typedef struct
+{
+  /* The name of the to be copied format attribute. */
+  const char *named_attr_src;
+  /* The name of the to be overridden format attribute. */
+  const char *named_attr_dst;
+} target_ovr_attr;
+
 #endif /* GCC_C_FORMAT_H */