[PATCH v4] Enable VDSO on x86_64 statically linked programs.

[Andreas Schwab]

In file included from ../sysdeps/unix/sysv/linux/powerpc/libc-vdso.h:25,
                 from ../sysdeps/powerpc/powerpc32/backtrace.c:23:
../sysdeps/unix/sysv/linux/sysdep-vdso.h:29:5: error: "USE_VSYSCALL" is not defined, evaluates to 0 [-Werror=undef]
 #if USE_VSYSCALL && defined HAVE_VSYSCALL
     ^~~~~~~~~~~~

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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"And now for something completely different."