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-rw-r--r--pod/perluniintro.pod5
1 files changed, 4 insertions, 1 deletions
diff --git a/pod/perluniintro.pod b/pod/perluniintro.pod
index 82c0d83a06..84bfb983a1 100644
--- a/pod/perluniintro.pod
+++ b/pod/perluniintro.pod
@@ -171,7 +171,10 @@ of course, removes the warning.
If your locale environment variables (LANGUAGE, LC_ALL, LC_CTYPE, LANG)
contain the strings 'UTF-8' or 'UTF8' (case-insensitive matching),
the default encoding of your STDIN, STDOUT, and STDERR, and of
-B<any subsequent file open>, is UTF-8.
+B<any subsequent file open>, is UTF-8. Note that this means
+that Perl expects other software to work, too: if STDIN coming
+in from another command is not UTF-8, Perl will complain about
+malformed UTF-8.
=head2 Unicode and EBCDIC