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

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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/setenv.texi

• @node setenv
  @subsection @code{setenv}
  @findex setenv
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/setenv.html}
  
  Gnulib module: setenv
  @mindex setenv
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This function is missing on some platforms:
  HP-UX 11.23, Solaris 9, mingw, MSVC 14.
  @item
  On some platforms, this function does not fail with @samp{EINVAL} when
  passed an empty string or a string containing @samp{=}:
  Mac OS X 10.5, FreeBSD 6.0, NetBSD 1.6, OpenBSD 7.5, Cygwin 1.5.x.
  @item
  On some platforms, this function removes a leading @samp{=} from the
  value argument:
  Cygwin 1.5.x.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  Older versions of POSIX required that @code{setenv(NULL,"",0)} gracefully
  fail with @code{EINVAL}, but not all implementations guarantee this,
  and the requirement was removed.
  @end itemize
  

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