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-rw-r--r--gnu/usr.bin/perl/perlio.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gnu/usr.bin/perl/perlio.c b/gnu/usr.bin/perl/perlio.c
index 2be59ebc456..91a95439f14 100644
--- a/gnu/usr.bin/perl/perlio.c
+++ b/gnu/usr.bin/perl/perlio.c
@@ -9,6 +9,12 @@
* over passes, and through long dales, and across many streams.
*/
+/* This file contains the functions needed to implement PerlIO, which
+ * is Perl's private replacement for the C stdio library. This is used
+ * by default unless you compile with -Uuseperlio or run with
+ * PERLIO=:stdio (but don't do this unless you know what you're doing)
+ */
+
/*
* If we have ActivePerl-like PERL_IMPLICIT_SYS then we need a dTHX to get
* at the dispatch tables, even when we do not need it for other reasons.