Created attachment 119610 [details] output make attempting to compile pavucontrol VCS Both pavucontrol 3.0 and latest VCS checkouts fail to build on up to date Arch Linux systems, apparently due to incompatibility with recent glibmm versions. An output (which I can't judge in detail) of make attempting to compile pavucontrol from VCS is attached. As it seemed to suggest that glibmm is involved I reverted the system to status of 2015-10-07 meaning among other a downgrade from glibmm 2.46.1 to 2.44.0. On a system like this both pavucontrol versions stated above compiled and worked flawlessly. Same thing after upgrading glibmm to 2.45.2. Later versions of glibmm wouldn't compile any longer and I didn't perform further tests as these would have caused quite a lot of dependency problems.
Did you reconfigure pavucontrol when you switched glibmm versions? I might have seen the same issues on my machine, which went away after I re-ran the configure script.
(In reply to Tanu Kaskinen from comment #1) Any attempt to compile was made in a pristine source tree. (Assuming that by "reconfigure" you mean reverting a particular source tree by running stuff like 'make clean' or the likes after former usage.)
Looks like this is because glibmm 2.46 onwards needs C++11 support while building.
*** Bug 94034 has been marked as a duplicate of this bug. ***
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