1 files changed, 18 insertions, 1 deletions

diff --git a/gl/attribute.h b/gl/attribute.h
index 130644d..710341b 100644
--- a/gl/attribute.h
+++ b/gl/attribute.h
@@ -1,6 +1,6 @@
 /* ATTRIBUTE_* macros for using attributes in GCC and similar compilers
 
-   Copyright 2020-2023 Free Software Foundation, Inc.
+   Copyright 2020-2024 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
@@ -41,6 +41,21 @@
      These names begin with 'ATTRIBUTE_' to avoid name clashes.  */
 
 
+/* This file uses _GL_ATTRIBUTE_ALLOC_SIZE, _GL_ATTRIBUTE_ALWAYS_INLINE,
+   _GL_ATTRIBUTE_ARTIFICIAL, _GL_ATTRIBUTE_COLD, _GL_ATTRIBUTE_CONST,
+   _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_DEPRECATED, _GL_ATTRIBUTE_ERROR,
+   _GL_ATTRIBUTE_WARNING, _GL_ATTRIBUTE_EXTERNALLY_VISIBLE,
+   _GL_ATTRIBUTE_FALLTHROUGH, _GL_ATTRIBUTE_FORMAT, _GL_ATTRIBUTE_LEAF,
+   _GL_ATTRIBUTE_MALLOC, _GL_ATTRIBUTE_MAY_ALIAS, _GL_ATTRIBUTE_MAYBE_UNUSED,
+   _GL_ATTRIBUTE_NODISCARD, _GL_ATTRIBUTE_NOINLINE, _GL_ATTRIBUTE_NONNULL,
+   _GL_ATTRIBUTE_NONSTRING, _GL_ATTRIBUTE_NOTHROW, _GL_ATTRIBUTE_PACKED,
+   _GL_ATTRIBUTE_PURE, _GL_ATTRIBUTE_RETURNS_NONNULL,
+   _GL_ATTRIBUTE_SENTINEL.  */
+#if !_GL_CONFIG_H_INCLUDED
+ #error "Please include config.h first."
+#endif
+
+
 /* =============== Attributes for specific kinds of functions =============== */
 
 /* Attributes for functions that should not be used.  */
@@ -167,6 +182,8 @@
 
 /* The function does not throw exceptions.  */
 /* Applies to: functions.  */
+/* After a function's parameter list, this attribute must come first, before
+   other attributes.  */
 #define ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_NOTHROW
 
 /* Do not inline the function.  */