libdecnumber/aclocal.m4:# generated automatically by aclocal 1.9.5 -*- Autoconf -*-
That's a problem in the last regeneration of this file. I'm CCing M. Meissner, H. J. Lu and M. Cornea, since they appear to have last changed this file, although there's no ChangeLog entry for it in their commit. PS: it appears that it has been update two days ago by bonzini, and the new version has been generated with aclocal 1.9.6.
1) To update the generated configure scripts of the tarball before than distributing it.
It could be done, but there's the risk that an automated process like that might introduce problems. I'd be more in favour of a nightly tester that check the "Generated by" headers to see if anything has an unexpected version number.
2) Or to remove the non-updated configure scripts.
That's a annoyance, because it would require the autotools to build the GCC source, which is inconvenient. FX