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| -rw-r--r-- | doc/coreutils.texi | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 46deeed46..adcd848e3 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -1455,10 +1455,11 @@ The @sc{gnu} utilities normally conform to the version of @acronym{POSIX} that is standard for your system. To cause them to conform to a different version of @acronym{POSIX}, define the @env{_POSIX2_VERSION} environment variable to a value of the form @var{yyyymm} specifying -the year and month the standard was adopted. Two values are currently +the year and month the standard was adopted. Three values are currently supported for @env{_POSIX2_VERSION}: @samp{199209} stands for -@acronym{POSIX} 1003.2-1992, and @samp{200112} stands for @acronym{POSIX} -1003.1-2001. For example, if you have a newer system but are running software +@acronym{POSIX} 1003.2-1992, @samp{200112} stands for @acronym{POSIX} +1003.1-2001, and @samp{200809} stands for @acronym{POSIX} 1003.1-2008. +For example, if you have a newer system but are running software that assumes an older version of @acronym{POSIX} and uses @samp{sort +1} or @samp{tail +10}, you can work around any compatibility problems by setting @samp{_POSIX2_VERSION=199209} in your environment. |