[PATCH] Enable unwind info in libc-start.c and backtrace.c

[Wilco Dijkstra]

Joseph Myers wrote:
> H.J. Lu wrote:
> 
> > # CC="gcc -m32 -march=i686" CXX="g++ -m32 -march=i686"
> > /export/gnu/import/git/sources/glibc/configure --prefix=/usr
> > --target=i686-linux --build=i686-linux --host=i686-linux
> > --enable-hardcoded-path-in-tests
> >
> > to configure glibc for i686 on Linux/x86-64.  It works fine.

> That suggests you have a --disable-multilib compiler.

Thanks, I've rebuilt everything and it now works perfectly.

So I can confirm x86 GLIBC unwinding also works as expected after
my patch.

OK for commit?

Wilco