Re: [Monotone-devel] list branches on server?

[hendrik]

On Sun, Aug 23, 2009 at 09:15:32AM -0500, Timothy Brownawell wrote:
> On Sun, 2009-08-23 at 08:20 -0400, Stephen Leake wrote:
> > Timothy Brownawell <address@hidden> writes:
> > 
> > > On Sat, 2009-08-22 at 21:10 -0600, Derek Scherger wrote:
> > >> On Sat, Aug 22, 2009 at 1:59 PM, Timothy Brownawell
> > >> <address@hidden> wrote:
> > >
> > >> 
> > >>           * version skew wrt libstdc++, eg boost and monotone have
> > >>           different ideas of what exactly an std::string looks like
> > >> 
> > >> Fantastic. Can you elaborate on this? I wonder how it's even possible
> > >> when boost is built with the same libstdc++ as monotone on my machine?
> > >
> > > Say your distribution is on gcc 3.4 so that's what boost is compiled
> > > with, and the binary on our site was compiled with 4.0. Or even if you
> > > compile it yourself, but you've installed a later version of gcc than
> > > the version that your distro is currently using.
> > 
> > This applies to any library written in C++, not just Boost. Botan is
> > in C++.
> > 
> > And it applies to C libraries as well, but apparently they are
> > more stable?
> > 
> > In general, anyone experimenting with new versions of compilers has to
> > be aware of such issues, and compile everything consistently.
> 
> Yes... I guess what made this a "boost issue" is that boost was the only
> library we didn't bundle at the time.
> 
> > The mtn binary for Linux on the mtn website should be more fully
> > described (compiler version, required dynamic library versions), so
> > people can do the right thing with it.
> 
> Which would require people to know what gcc version their distro is
> using. This seems reasonable to expect of people coding in C or
> C++, but what of everyone else (particularly if they can't do
> "gcc --version" because it isn't installed)?
> 
> Do you know of a way to detect at runtime which compiler version was
> used for the libraries?

Well. at the very least they'd have an idea where the problem lay.
And our wiki could end up holding some distribution-dependent 
information (like which gcc the libraries of horny-hedgehog (or 
whatever) were compiled with) when we become aware of it..

-- hendrik