rewrite make.globals to use EPREFIX

BUG=b:20895978

Change-Id: Id1877bb64ae6f3e1c7a048bd07e94fbad2f70827
diff --git a/usr/share/portage/config/make.globals b/usr/share/portage/config/make.globals
index e901e6b..47524bb 100644
--- a/usr/share/portage/config/make.globals
+++ b/usr/share/portage/config/make.globals
@@ -28,12 +28,12 @@
 ACCEPT_RESTRICT="*"
 
 # Miscellaneous paths
-DISTDIR="/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/usr/portage/distfiles"
-PKGDIR="/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/usr/portage/packages"
-RPMDIR="/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/usr/portage/rpm"
+DISTDIR="${EPREFIX}/usr/portage/distfiles"
+PKGDIR="${EPREFIX}/usr/portage/packages"
+RPMDIR="${EPREFIX}/usr/portage/rpm"
 
 # Temporary build directory
-PORTAGE_TMPDIR="/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/var/tmp"
+PORTAGE_TMPDIR="${EPREFIX}/var/tmp"
 
 # Fetching command (3 tries, passive ftp for firewall compatibility)
 FETCHCOMMAND="wget -t 3 -T 60 --passive-ftp -O \"\${DISTDIR}/\${FILE}\" \"\${URI}\""
@@ -129,13 +129,13 @@
 PORTAGE_INST_GID="5000"
 
 # Default PATH for ebuild env
-DEFAULT_PATH="/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/usr/sbin:/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/usr/bin:/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/sbin:/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir/bin"
+DEFAULT_PATH="${EPREFIX}/usr/sbin:${EPREFIX}/usr/bin:${EPREFIX}/sbin:${EPREFIX}/bin"
 # Any extra PATHs to add to the ebuild environment's PATH (if any)
 EXTRA_PATH=""
 
 # The offset prefix this Portage was configured with (not used by
 # Portage itself)
-CONFIGURE_EPREFIX="/usr/local/google/home/vapier/src/android/mdk/build/portage/tmp/prefix-portage-2.2.14/destdir"
+CONFIGURE_EPREFIX="${EPREFIX}"
 
 # Mode bits for ${WORKDIR} (see ebuild.5).
 PORTAGE_WORKDIR_MODE="0700"