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Re: mini-freeze of autotools-governed files in GCC and src

* Kaveh R. GHAZI wrote on Sun, Aug 23, 2009 at 03:31:00PM CEST:
> On Sat, 22 Aug 2009, Ralf Wildenhues wrote:
> > The trees have been updated to Autoconf 2.64 and Automake 1.11.  Please
> > take a minute to ensure that you use these tools now when changing build
> > system generated files;
> Why request developers ensure this and not bump the AC_PREREQ to make
> sure?

Toplevel config/override.m4 should already cause failure if you use
anything other than Autoconf 2.64 (but it doesn't ensure Automake 1.11).

However, if override.m4 isn't included in some directory (because that
hasn't been done yet, or because somebody ran aclocal with missing -I
arguments), then the test isn't used.  So it's debatable whether
AC_PREREQ would help for that case.  Since we pretty much require
override.m4 to fix a bug in 2.64, however, that doesn't really gain us
all that much.  Better to just ensure it is used everywhere.

A few followup patches to binutils ensure Automake 1.11 there.  I can
write one to ensure it in GCC as well (or think about a way to do it in
override.m4) if that is desired.


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