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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/multithread.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/multithread.texi b/doc/multithread.texi index 7fe19a7817..a63d3ee0fa 100644 --- a/doc/multithread.texi +++ b/doc/multithread.texi @@ -274,4 +274,8 @@ You may define the C macro @code{GNULIB_WCHAR_SINGLE}, if all the programs in your package are single-threaded and won't change the locale after it has been initialized. This macro optimizes the functions @code{mbrtowc} and @code{wcwidth}. +@item +You may define the C macro @code{GNULIB_GETUSERSHELL_SINGLE_THREAD}, if all the +programs in your package invoke the functions @code{setusershell}, +@code{getusershell}, @code{endusershell} only from a single thread. @end itemize |