cffi-posix/cffi-unistd

diff --git a/package.lisp b/package.lisp
index fea0423..1585cf2 100644
--- a/package.lisp
+++ b/package.lisp
@@ -29,6 +29,9 @@
    #:read
    #:write)
   (:export
+   #:+stdin-fileno+
+   #:+stdout-fileno+
+   #:+stderr-fileno+
    #:c-access
    #:access
    #:c-lseek