+dyn_prepare() {
+
+ if [[ $PORTAGE_BUILDDIR/.prepared -nt $WORKDIR ]] ; then
+ vecho ">>> It appears that '$PF' is already prepared; skipping."
+ vecho ">>> Remove '$PORTAGE_BUILDDIR/.prepared' to force prepare."
+ return 0
+ fi
+
+ local srcdir
+ if [[ -d $S ]] ; then
+ srcdir=$S
+ else
+ srcdir=$WORKDIR
+ fi
+ cd "$srcdir"
+
+ trap abort_prepare SIGINT SIGQUIT
+
+ ebuild_phase pre_src_prepare
+ ebuild_phase src_prepare
+ touch "$PORTAGE_BUILDDIR"/.prepared
+ ebuild_phase post_src_prepare
+
+ trap SIGINT SIGQUIT
+}
+