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Andy Lutomirski committed 011561837da
x86/vdso, build: When vdso2c fails, unlink the output This avoids bizarre failures if make is run again. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/1764385fe9931e8940b9d001132515448ea89523.1401464755.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>