[LAD] [FFADO-devel] can't build libffado 2.2.1 under gentoo

[Jonathan Woithe]

On Thu, Apr 14, 2016 at 10:24:05AM +0200, Stefan Richter wrote:
> On Apr 14 Stefan Richter wrote:
> > gcc (Gentoo 4.9.3 p1.2, pie-0.6.3) 4.9.3"
> > [...]
> > Build log:  http://pastebin.com/fRHScVVH
> > 
> > Not sure what changed since the last successful build.  gcc was possibly
> > the same.
> 
> Build fails in the same way with gcc (Gentoo 4.8.5 p1.3, pie-0.6.2) 4.8.5.

Current svn builds fine for me in Slackware 14.1: gcc 4.8.2, libxml++
2.37.2, dbus-c++ git from Nov 2014, glibmm 2.36.2.  My compilation lines do
*not* include "-std=c++11", so I wonder whether the presence of that is the
root cause for the trouble.  My typical g++ call is
  
  g++ -o src/dice/dice_avdevice.os -c -m64 -Wall -g -Werror -fPIC -fPIC ...

This is in a multilib x86_64 environment, so "-m64" is expected.  I don't
think the "-std=c++11" should be specified; it would be interesting to query
the ebuild commit log to see what reason was given when it was added
(assuming that this is where it's coming from).  Is there a way for you to
hack the build script to get rid of it so this theory can be tested?

Also, following up on my earlier comment about libxml++, I checked my logs
and the problem I was thinking about wasn't a compilation error, but was
related to the chasing the cause of warnings in a couple of libraries.  It's
therefore not relevant here.

Regards
  jonathan