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-rw-r--r--io.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/io.c b/io.c
index d218e8ce22..9f37e03909 100644
--- a/io.c
+++ b/io.c
@@ -4010,8 +4010,7 @@ rb_io_close(VALUE io)
if (fptr->fd < 0) return Qnil;
fd = fptr->fd;
-#if defined __APPLE__ && defined(__MACH__) && \
- (!defined(MAC_OS_X_VERSION_MIN_ALLOWED) || MAC_OS_X_VERSION_MIN_ALLOWED <= 1050)
+#if defined __APPLE__ && (!defined(MAC_OS_X_VERSION_MIN_ALLOWED) || MAC_OS_X_VERSION_MIN_ALLOWED <= 1050)
/* close(2) on a fd which is being read by another thread causes
* deadlock on Mac OS X 10.5 */
rb_thread_fd_close(fd);