[PATCH] math/Makefile: don't clobber old libm.so on install [BZ #19822]

[Joseph Myers]

On Tue, 15 Mar 2016, Mike Frysinger wrote:

> > The simple patch below to math/Makefile fixes this.  It is based on the nptl
> > Makefile, which does exactly the same thing in a safer way.
> 
> patch looks fine

So you should commit it, since the submitter doesn't have commit access.

-- 
Joseph S. Myers
joseph@codesourcery.com