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| author | Bruno Haible <bruno@clisp.org> | 2023-03-25 21:48:31 +0100 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2023-03-25 21:48:31 +0100 |
| commit | 55a1207abc196655b9ef7c34b3cb7d736e6e7fe7 (patch) | |
| tree | 480a44ef6866285944d623574a00af4728274161 /doc | |
| parent | 53370c23642eb6256dafd7b6abca8cc93581b7c2 (diff) | |
| download | gnulib-55a1207abc196655b9ef7c34b3cb7d736e6e7fe7.tar.gz | |
stdlib: ISO C 23: Document issue with once_flag and call_once.
* doc/posix-headers/stdlib.texi: Document issue and workaround.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/posix-headers/stdlib.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/posix-headers/stdlib.texi b/doc/posix-headers/stdlib.texi index e7145b7dcc..612e794068 100644 --- a/doc/posix-headers/stdlib.texi +++ b/doc/posix-headers/stdlib.texi @@ -29,6 +29,12 @@ MirBSD 10. Portability problems not fixed by Gnulib: @itemize @item +The definition of the type @code{once_flag}, of the macro +@code{ONCE_FLAG_INIT}, and the declaration of the function +@code{call_once}, that are required by ISO C 23, are not provided. +To get them, import Gnulib module @code{call_once} and include +@code{<threads.h>} rather than @code{<stdlib.h>}. +@item System status macros such as @code{WEXITSTATUS} require an lvalue argument on some platforms. macOS 11.1. |