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

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• Hash : 96caee5e
  Author :
  Date : 2018-03-26T19:23:33
  

  time_rz: work around Mac OS X 10.6 infloop
  
  * doc/posix-functions/localtime.texi:
  * doc/posix-functions/localtime_r.texi: Mention the bug.
  * lib/time_rz.c (localtime_rz): Work around the bug.  It’d be
  better to fix localtime and localtime_r instead, but that would be
  more work and is not needed to fix the Emacs problem.
  * m4/time_rz.m4 (gl_TIME_RZ): Detect the bug.
  

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• doc/posix-functions/localtime.texi

• @node localtime
  @section @code{localtime}
  @findex localtime
  
  POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/localtime.html}
  
  Gnulib module: localtime
  
  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.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  On some platforms, this function loops forever for values
  near extrema (such as the year @math{-2**31}):
  Mac OS X 10.6.
  You can use the @code{time_rz} module to work around the problem.
  @item
  On some platforms, this function returns nonsense values for
  unsupported arguments (like @math{2^56}), rather than failing:
  FreeBSD 10.
  @item
  Native Windows platforms (mingw, MSVC) support only a subset of time
  zones supported by GNU or specified by POSIX.  @xref{tzset}.
  @end itemize
  

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