Blame SOURCES/glibc-rh1505492-undef-19.patch

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commit 8f2f08d04f969f27dad47ee2d9dcbe567f2873bc
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Author: Roland McGrath <roland@hack.frob.com>
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Date:   Thu May 1 13:33:13 2014 -0700
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    Fix -Wundef warnings for _IO_JUMPS_OFFSET.
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diff --git a/libio/libioP.h b/libio/libioP.h
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index c170b872028c7a5f..b60244ac5fc3d908 100644
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--- a/libio/libioP.h
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+++ b/libio/libioP.h
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@@ -100,6 +100,8 @@ extern "C" {
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 #if (!defined _IO_USE_OLD_IO_FILE \
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      && (!defined _G_IO_NO_BACKWARD_COMPAT || _G_IO_NO_BACKWARD_COMPAT == 0))
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 # define _IO_JUMPS_OFFSET 1
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+#else
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+# define _IO_JUMPS_OFFSET 0
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 #endif
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 #define _IO_JUMPS(THIS) (THIS)->vtable