[app-emulation/qemu] sync with tree

app-emulation/qemu/qemu-2.0.0-r1.ebuild

@@ -8,7 +8,7 @@ PYTHON_COMPAT=( python{2_6,2_7} )
 PYTHON_REQ_USE="ncurses,readline"
 
 inherit eutils flag-o-matic linux-info toolchain-funcs multilib python-r1 \
-	user udev fcaps readme.gentoo
+	user udev fcaps readme.gentoo pax-utils
 
 BACKPORTS=
 
@@ -214,6 +214,14 @@ pkg_pretend() {
 			check_extra_config
 		fi
 	fi
+
+	if grep -qs '/usr/bin/qemu-kvm' "${EROOT}"/etc/libvirt/qemu/*.xml; then
+		eerror "The kvm/qemu-kvm wrappers no longer exist, but your libvirt"
+		eerror "instances are still pointing to it.  Please update your"
+		eerror "configs in /etc/libvirt/qemu/ to use the -enable-kvm flag"
+		eerror "and the right system binary (e.g. qemu-system-x86_64)."
+		die "update your virt configs to not use qemu-kvm"
+	fi
 }
 
 pkg_setup() {
@@ -376,15 +384,21 @@ src_configure() {
 
 	python_export_best
 
-	softmmu_targets=
-	user_targets=
+	softmmu_targets= softmmu_bins=()
+	user_targets= user_bins=()
 
 	for target in ${IUSE_SOFTMMU_TARGETS} ; do
-		use "qemu_softmmu_targets_${target}" && softmmu_targets+=",${target}-softmmu"
+		if use "qemu_softmmu_targets_${target}"; then
+			softmmu_targets+=",${target}-softmmu"
+			softmmu_bins+=( "qemu-system-${target}" )
+		fi
 	done
 
 	for target in ${IUSE_USER_TARGETS} ; do
-		use "qemu_user_targets_${target}" && user_targets+=",${target}-linux-user"
+		if use "qemu_user_targets_${target}"; then
+			user_targets+=",${target}-linux-user"
+			user_bins+=( "qemu-${target}" )
+		fi
 	done
 
 	[[ -n ${softmmu_targets} ]] && \
@@ -417,9 +431,11 @@ src_compile() {
 }
 
 src_test() {
-	cd "${S}/softmmu-build"
-	emake -j1 check
-	emake -j1 check-report.html
+	if [[ -n ${softmmu_targets} ]]; then
+		cd "${S}/softmmu-build"
+		emake -j1 check
+		emake -j1 check-report.html
+	fi
 }
 
 qemu_python_install() {
@@ -444,9 +460,8 @@ src_install() {
 		cd "${S}/softmmu-build"
 		emake DESTDIR="${ED}" install
 
-		if use test; then
-			dohtml check-report.html
-		fi
+		# This might not exist if the test failed. #512010
+		[[ -e check-report.html ]] && dohtml check-report.html
 
 		if use kernel_linux; then
 			udev_dorules "${FILESDIR}"/65-kvm.rules