Richard Biener <rguent...@suse.de> writes: > The GMP people complained that we "advertise" outdated versions > in our install instructions. I tried to address that by not > explicitely listing a "good" version but only mention the version > that is the minimum requirement. I also added a reference to > contrib/download_prerequesites as the recommended way to do > in-tree builds (so we don't get random bugreports for that > with untested combinations of gmp/mpfr/mpc versions). > > We probably should try to bump the versions used by that script > to something more recent though (should we do that for the 4.9 > branch even?). Any idea what to choose here? I'd say mpc > 1.0.2 is fine, so is mpfr 3.1.2, but should we avoid the 6.0.0 version > of gmp? We shouldn't change those versions too often, otherwise > we end up with a lot of garbage in gcc/infrastructure (we don't > want to break old versions of the script). > > Meanwhile is does the patch look ok?
I'd strongly advise against it: in the past we've had serious problems with versions newer than advertised in install.texi on some platforms. Until we have positive evidence that specific newer versions work on a wide range of platforms, we shouldn't suggest to our users that they might. Many users tried with the then-current versions in the past, and the failures are often quite hard to trace back to this. For the 4.9 branch, we should leave this as is: the benefit is almost certainly not worth the trouble. Rainer -- ----------------------------------------------------------------------------- Rainer Orth, Center for Biotechnology, Bielefeld University