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-rw-r--r--Modules/selectmodule.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c
index a405812701..d8a68c570a 100644
--- a/Modules/selectmodule.c
+++ b/Modules/selectmodule.c
@@ -1746,7 +1746,9 @@ initselect(void)
Py_INCREF(SelectError);
PyModule_AddObject(m, "error", SelectError);
+#ifdef PIPE_BUF
PyModule_AddIntConstant(m, "PIPE_BUF", PIPE_BUF);
+#endif
#if defined(HAVE_POLL)
#ifdef __APPLE__