[RFA] Fix libsupc++/Makefile.in

[Neil Booth]

B. Kosnik wrote:-

> This patch is conceptually fine, but what you need to do is edit
> libsupc++/Makefile.am and then auto-generate libsupc++/Makefile.in.
> 
> (The best way to do that is, at the top level of libstdc++-v3:
> aclocal; autoconf; autoheader; automake)

Ah yes.  Is there a specific version of autoconf etc. I should be
using?  I have 2.13 and 2.50 of autoconf.

Neil.