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-rw-r--r--gnulib-m4/flexmember.m410
1 files changed, 4 insertions, 6 deletions
diff --git a/gnulib-m4/flexmember.m4 b/gnulib-m4/flexmember.m4
index db93cf3..3b4237e 100644
--- a/gnulib-m4/flexmember.m4
+++ b/gnulib-m4/flexmember.m4
@@ -1,7 +1,7 @@
# serial 5
# Check for flexible array member support.
-# Copyright (C) 2006, 2009-2018 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2009-2022 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
@@ -34,12 +34,10 @@ AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER],
AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [],
[Define to nothing if C supports flexible array members, and to
1 if it does not. That way, with a declaration like 'struct s
- { int n; double d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack
+ { int n; short d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack
can be used with pre-C99 compilers.
- When computing the size of such an object, don't use 'sizeof (struct s)'
- as it overestimates the size. Use 'offsetof (struct s, d)' instead.
- Don't use 'offsetof (struct s, d@<:@0@:>@)', as this doesn't work with
- MSVC and with C++ compilers.])
+ Use 'FLEXSIZEOF (struct s, d, N * sizeof (short))' to calculate
+ the size in bytes of such a struct containing an N-element array.])
else
AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1])
fi