* io.c (Init_IO): define IO::BINARY even if O_BINARY is not exist.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14403 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/io.c b/io.c
index b03dac5e94..5055b29fdc 100644
--- a/io.c
+++ b/io.c
@@ -6346,6 +6346,8 @@ Init_IO(void)
 #endif
 #ifdef O_BINARY
     rb_file_const("BINARY", INT2FIX(O_BINARY));
+#else
+    rb_file_const("BINARY", INT2FIX(0));
 #endif
 #ifdef O_SYNC
     rb_file_const("SYNC", INT2FIX(O_SYNC));