kc3-lang/gnulib/doc/posix-functions/tzset.texi

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• Hash : b0ebe1b9
  Author :
  Date : 2017-05-01T18:00:56
  

  tzset: update doc for TZ problems on MS-Windows
  
  * doc/posix-functions/ctime.texi,  doc/posix-functions/daylight.texi:
  * doc/posix-functions/localtime.texi, doc/posix-functions/mktime.texi:
  * doc/posix-functions/strftime.texi, doc/posix-functions/timezone.texi:
  * doc/posix-functions/tzname.texi, doc/posix-functions/tzset.texi:
  * doc/posix-functions/wcsftime.texi:
  Mention some issues with TZ under MS-Windows.
  

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• doc/posix-functions/tzset.texi

• @node tzset
  @section @code{tzset}
  @findex tzset
  
  POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/tzset.html}
  
  Gnulib module: tzset
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  On native Windows platforms (mingw, MSVC), this function works incorrectly
  when the environment variable @code{TZ} has been set by Cygwin.
  @item
  This function clobbers the buffer used by the localtime function on some
  platforms:
  Solaris 2.6.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  Native Windows platforms (mingw, MSVC) support only a subset of
  POSIX-specified values for the @env{TZ} environment variable,
  consisting of a time zone abbreviation containing exactly three ASCII
  letters with no daylight saving time or angle brackets, and with no
  support for @code{tz} database settings like
  @code{TZ='America/New_York'}.  Even this subset does not work on
  applications built via the Universal Windows Platform, as it does not
  make environment variables like @env{TZ} available to applications.
  @end itemize
  

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