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)