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-rw-r--r--term/term.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/term/term.h b/term/term.h
index c6763d06..162ed49d 100644
--- a/term/term.h
+++ b/term/term.h
@@ -384,7 +384,7 @@ extern dev_t rdev;
/* kludge--these are pty versions of trivfs_S_io_* functions called by
the real functions in users.c to do work for ptys. */
-error_t pty_io_write (struct trivfs_protid *, char *,
+error_t pty_io_write (struct trivfs_protid *, const char *,
mach_msg_type_number_t, mach_msg_type_number_t *);
error_t pty_io_read (struct trivfs_protid *, char **,
mach_msg_type_number_t *, mach_msg_type_number_t);