kc3-lang/gnulib/doc/posix-functions/tzname.texi
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Hash : c36a0f21
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Date : 2024-10-27T17:01:29
doc: Add a module index. * doc/Makefile (undocumented-modules.texi): New rule. (%.info, %.html, %.dvi, %.pdf): Depend on undocumented-modules.texi. (mostlyclean): Remove also *.m and *.tmp. (force): New rule. * doc/*.texi: Add module index entries. * doc/*/*.texi: Likewise.
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doc/posix-functions/tzname.texi
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@node tzname @subsection @code{tzname} @findex tzname POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/tzname.html} Gnulib module: tzname @mindex tzname Portability problems fixed by Gnulib: @itemize @item This variable is called @code{_tzname} on some platforms: mingw with @code{-DNO_OLDNAMES}, MSVC. @end itemize Portability problems not fixed by Gnulib: @itemize @item This variable's contents are unreliable if you use a geographical @env{TZ} setting like @code{TZ="America/Los_Angeles"}. @item The address of this variable is not a compile-time constant on some platforms: Cygwin, mingw, MSVC. @item Native Windows platforms (mingw, MSVC) support only a subset of time zones supported by GNU or specified by POSIX@. @xref{tzset}. @end itemize This variable is vestigial: it is not needed and does not suffice in general. It is planned to be removed from a future version of POSIX@. A more portable way of getting the time zone abbreviation is to use @code{strftime} with the @code{%Z} format. @xref{strftime}.