[RFA] Fix libsupc++/Makefile.in

[Gabriel Dos Reis]

Neil Booth <neil@daikokuya.co.uk> writes:

| 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.

I think we are using 2.13 -- my base system comes with 2.52 but I
installed 2.13 just for V3 development.

-- Gaby