Due the following error:

Making check in tools
make[1]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/tools'
make[1]: Nothing to be done for `check'.
make[1]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/tools'
Making check in extensions
make[1]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/extensions'
make  check-am
make[2]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/extensions'
make[2]: Nothing to be done for `check-am'.
make[2]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/extensions'
make[1]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/extensions'
Making check in po
make[1]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/po'
INTLTOOL_EXTRACT=/usr/bin/intltool-extract srcdir=. /usr/bin/intltool-update --gettext-package empathy --pot
rm -f missing notexist
srcdir=. /usr/bin/intltool-update -m
if [ -r missing -o -r notexist ]; then \
          exit 1; \
        fi
make[1]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/po'
Making check in data
make[1]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/data'
Making check in icons
make[2]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/data/icons'
make[2]: Nothing to be done for `check'.
make[2]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/data/icons'
make[2]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/data'
make[2]: Nothing to be done for `check-am'.
make[2]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/data'
make[1]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/data'
Making check in libempathy
make[1]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/libempathy'
make  check-am
make[2]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/libempathy'
make  check-local
make[3]: Entering directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/libempathy'
empathy-dispatcher.c:347:      GError *error;
^^^ The above files contain uninitialized GError*s - they should be
    initialized to NULL
make[3]: *** [check-coding-style] Error 1
make[3]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/libempathy'
make[2]: *** [check-am] Error 2
make[2]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/libempathy'
make[1]: *** [check] Error 2
make[1]: Leaving directory `/var/tmp/portage/net-im/empathy-2.30.1.1/work/empathy-2.30.1.1/libempathy'
make: *** [check-recursive] Error 1

Thanks for solving this