Document use of empty macro args.

diff --git a/ChangeLog b/ChangeLog
index 8bf9e172c53e3da9f52a71a45a0ca8409c7e9f70..d4f3555e6d89b88d425e9d65880e6c3aba9c6f6a 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -8,6 +8,8 @@
        one is empty.  Although this change requires C99 or later, that’s
        safe nowadays.  Suggested by Bruno Haible in:
        https://lists.gnu.org/r/bug-gnulib/2024-09/msg00079.html
+       * doc/gnulib-readme.texi (C99 features assumed):
+       Document that we assume this C99 feature.
        * lib/c++defs.h (_GL_FUNCDECL_RPL, _GL_FUNCDECL_SYS):
        Revert yesterday’s changes.  All callers changed.
        Add comments explaining the required comma before missing attrs.

diff --git a/doc/gnulib-readme.texi b/doc/gnulib-readme.texi
index 25d7b54e2c5e19cad7cc0a0dadda433a4620586c..eafb3a0b0173b655bfd1635dd9498642f23a6b39 100644 (file)
--- a/doc/gnulib-readme.texi
+++ b/doc/gnulib-readme.texi
@@ -376,6 +376,9 @@ it directly, preferring plain @code{bool} via the
 @item
 Compound literals and designated initializers.
 
+@item
+Empty arguments in macro calls.
+
 @item
 Variadic macros.@*
 @findex __VA_ARGS__