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Diffstat (limited to 'gnulib/doc/posix-functions/unsetenv.texi')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/doc/posix-functions/unsetenv.texi | 37 |
2 files changed, 37 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/doc/posix-functions/unsetenv.texi b/gnulib/doc/posix-functions/unsetenv.texi new file mode 100644 index 0000000..33f4d1f --- /dev/null +++ b/gnulib/doc/posix-functions/unsetenv.texi @@ -0,0 +1,37 @@ +@node unsetenv +@section @code{unsetenv} +@findex unsetenv + +POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/unsetenv.html} + +Gnulib module: unsetenv + +Portability problems fixed by Gnulib: +@itemize +@item +This function is missing on some platforms: +AIX 5.1, HP-UX 11.23, IRIX 6.5, Solaris 9, mingw, MSVC 9, BeOS. +@item +This function is not declared on some platforms: +OSF/1 5.1. +@item +This function has the return type @samp{void} instead of @samp{int} on some +platforms: +MacOS X 10.3, FreeBSD 6.0, NetBSD 1.6, OpenBSD 3.8, OSF/1 5.1. +@item +On some platforms, this function does not fail with @samp{EINVAL} when +passed an empty string or a string containing @samp{=}: +FreeBSD 6.0, NetBSD 1.6, OpenBSD 4.7. +@item +This function removes only the first value association for the given +environment variable, not all of them, on some platforms: +Solaris 11 2010-11, Haiku. +@end itemize + +Portability problems not fixed by Gnulib: +@itemize +@item +Older versions of POSIX required that @code{unsetenv(NULL)} gracefully +fail with @code{EINVAL}, but not all implementations guarantee this, +and the requirement was removed. +@end itemize |