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doc: Document how to deal with missing 'join'.

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* doc/autoconf.texi (Limitations of Usual Tools): Mention that 'join' is missing
in BusyBox.
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Bruno Haible 2022-01-08 22:31:58 +01:00 committed by Paul Eggert
parent d405fa2ec6
commit b0d5d2d3eb
1 changed files with 6 additions and 0 deletions
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@ -19624,6 +19624,12 @@ On NetBSD, @command{join -a 1 file1 file2} mistakenly behaves like
@command{join -a 1 -a 2 1 file1 file2}, resulting in a usage warning;
the workaround is to use @command{join -a1 file1 file2} instead.
On platforms with the BusyBox tools, the @command{join} command is
entirely missing. As a workaround, you can simulate special cases of the
@command{join} command using an @command{awk} script. For an example,
see @url{https://lists.gnu.org/r/bug-gnulib/2021-04/msg00054.html}.
@item @command{ln}
@c ---------------
@prindex @command{ln}