Bug#800371: glibmm2.4: C++11 features in headers but no -std=c++11 in pkg-config

[Aurelien Jarno]

Source: glibmm2.4
Version: 2.46.1-1
Severity: serious

glibmm2.4 version 2.46.1-1 started to use C++11 features in the headers
it exports, but pkg-config --cflags doesn't return -std=c++11. Given the
default is still -std=gnu++98 in GCC 5, it causes packages which use
these headers to fails to build.

A build log showing the issue can be found here:

https://buildd.debian.org/status/fetch.php?pkg=inkscape&arch=mips64el&ver=0.91-5%2Bb1&stamp=1443446208


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: mips64el (mips64)

Kernel: Linux 4.1.0-2-5kc-malta
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)