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

[Rafael Avila de Espindola]

"Andreas Schwab" <schwab@suse.de> writes:

> 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

Sorry about that.

While the particular build problem on powerpc is now fixed, maybe we
should just include sysdep.h from sysdep-vdso.h?

The attached patch does just that. The changelog is

2018-11-26  Rafael Ávila de Espíndola  <rafael@espindo.la>

	[BZ #19767]
	* sysdeps/unix/sysv/linux/sysdep-vdso.h: include sysdep.h.

Cheers,
Rafael