The gn bootstrap script does not build gn against tcmalloc.
Since
2dd4eba0, we no longer rebuild gn after bootstrap.
Package-Manager: Portage-2.3.6_p60, Repoman-2.3.3_p38
>=dev-util/ninja-1.7.2
>=net-libs/nodejs-4.6.1
sys-apps/hwids[usb(+)]
- tcmalloc? ( !<sys-apps/sandbox-2.11 )
>=sys-devel/bison-2.4.3
sys-devel/flex
virtual/pkgconfig
>=dev-util/ninja-1.7.2
>=net-libs/nodejs-4.6.1
sys-apps/hwids[usb(+)]
- tcmalloc? ( !<sys-apps/sandbox-2.11 )
>=sys-devel/bison-2.4.3
sys-devel/flex
virtual/pkgconfig
>=dev-util/ninja-1.7.2
>=net-libs/nodejs-4.6.1
sys-apps/hwids[usb(+)]
- tcmalloc? ( !<sys-apps/sandbox-2.11 )
>=sys-devel/bison-2.4.3
sys-devel/flex
virtual/pkgconfig