'emerge -uvDN root' hangs at: bin/rmkdepend -R -fmath/minuit2/src/FumiliStandardChi2FCN.d -Y -w 1000 -- -pipe -m64 -Wshadow -Wall -W -Woverloaded-virtual -fPIC -Iinclude -DR__HAVE_CONFIG -march=native -O2 -pipe -pthread -DWARNINGMSG -DUSE_ROOT_ERROR -D__cplusplus -- /var/tmp/portage_standard/sci-physics/root-5.34.05/work/root/math/minuit2/src/FumiliStandardChi2FCN.cxx mpic++ -DMPIPROC -march=native -O2 -pipe -pipe -m64 -Wshadow -Wall -W -Woverloaded-virtual -fPIC -Iinclude -DR__HAVE_CONFIG -march=native -O2 -pipe -pthread -DWARNINGMSG -DUSE_ROOT_ERROR -o math/minuit2/src/FumiliStandardChi2FCN.o -c /var/tmp/portage_standard/sci-physics/root-5.34.05/work/root/math/minuit2/src/FumiliStandardChi2FCN.cxx bin/rmkdepend -R -fmath/minuit2/src/FumiliBuilder.d -Y -w 1000 -- -pipe -m64 -Wshadow -Wall -W -Woverloaded-virtual -fPIC -Iinclude -DR__HAVE_CONFIG -march=native -O2 -pipe -pthread -DWARNINGMSG -DUSE_ROOT_ERROR -D__cplusplus -- /var/tmp/portage_standard/sci-physics/root-5.34.05/work/root/math/minuit2/src/FumiliBuilder.cxx mpic++ -DMPIPROC -march=native -O2 -pipe -pipe -m64 -Wshadow -Wall -W -Woverloaded-virtual -fPIC -Iinclude -DR__HAVE_CONFIG -march=native -O2 -pipe -pthread -DWARNINGMSG -DUSE_ROOT_ERROR -o math/minuit2/src/FumiliBuilder.o -c /var/tmp/portage_standard/sci-physics/root-5.34.05/work/root/math/minuit2/src/FumiliBuilder.cxx bin/rmkdepend -R -fmath/minuit2/src/mndasum.d -Y -w 1000 -- -pipe -m64 -Wshadow -Wall -W -Woverloaded-virtual -fPIC -Iinclude -DR__HAVE_CONFIG -march=native -O2 -pipe -pthread -DWARNINGMSG -DUSE_ROOT_ERROR -D__cplusplus -- /var/tmp/portage_standard/sci-physics/root-5.34.05/work/root/math/minuit2/src/mndasum.cxx mpic++ -DMPIPROC -march=native -O2 -pipe -pipe -m64 -Wshadow -Wall -W -Woverloaded-virtual -fPIC -Iinclude -DR__HAVE_CONFIG -march=native -O2 -pipe -pthread -DWARNINGMSG -DUSE_ROOT_ERROR -o math/minuit2/src/mndasum.o -c /var/tmp/portage_standard/sci-physics/root-5.34.05/work/root/math/minuit2/src/mndasum.cxx Maybe this is an duplicate of Bug 463220, Bug 462990 or Bug 462672.
Please attach the complete build log and reply with the output of `emerge --info =sci-physics/root-5.34.05`.
*** This bug has been marked as a duplicate of bug 462990 ***