From the build log: > * Running qmake ... > Info: creating stash file /var/tmp/portage/net-p2p/retroshare-0.6.1/work/RetroShare-0.6.1/libretroshare/src/.qmake.stash > Project ERROR: libupnp development package not found This is determined by calling "pkg-config --exists libupnp", which returns 1 instead of 0. Changing the dependency to "net-libs/libupnp:0" in the ebuild fixes this.
commit 56a484380c000d44d1fea4af3364f65d92acd8d1 Author: Sergey Popov <pinkbyte@gentoo.org> Date: Thu Jan 12 16:47:48 2017 +0300 net-p2p/retroshare: correct dependency on net-libs/libupnp Reported-by: <shinydoofy@gmail.com> Gentoo-Bug: 604886 Package-Manager: portage-2.3.3 Thanks!