testing/xen: build fix

we need librt.

also add pciutils-dev for pci passthough support and only build
stubdom non-parallell.

testing/xen/APKBUILD

@@ -8,7 +8,8 @@ url="http://www.xen.org"
 arch="x86 x86_64"
 license="GPL"
 depends="udev syslinux bash"
-depends_dev="openssl-dev python-dev e2fsprogs-dev gettext zlib-dev ncurses-dev libiconv-dev dev86 texinfo perl iasl sed"
+depends_dev="openssl-dev python-dev e2fsprogs-dev gettext zlib-dev ncurses-dev
+	libiconv-dev dev86 texinfo perl iasl sed pciutils-dev"
 makedepends="$depends_dev"
 install=""
 subpackages="$pkgname-doc"
@@ -20,6 +21,7 @@ source="http://bits.xensource.com/oss-xen/release/$pkgver/$pkgname-$pkgver.tar.g
 	fix_ipxe_no_pie_default.patch
 	define_fsimage_dir.patch
 	pygrub_alpine.patch
+	librt.patch
 	xencommons.initd
 	xend.initd
 	xendomains.initd"
@@ -54,10 +56,10 @@ build() {
         (cd tools/check; ./chk build) || return 1
 
         msg "Building hypervisor..."
-        make -j1 xen || return 1
+        make xen || return 1
 
         msg "Building tools..."
-        make -j1 tools || return 1
+        make tools || return 1
 
         msg "Building stub domains..."
         make -j1 stubdom || return 1
@@ -85,6 +87,7 @@ b973dc1ffcc6872e222b36f3b7b4836b  fix_bswap_blktap2.patch
 10dcf0b6a05691e9f88afc01bd414480  fix_ipxe_no_pie_default.patch
 0bb8a435020a5a49b38b1a447fb69977  define_fsimage_dir.patch
 f64405982218db306c2b5cf3167ff944  pygrub_alpine.patch
+fa06495a175571f4aa3b6cb88937953e  librt.patch
 4cf88b53f8ca8d99ad52bae419b620a7  xencommons.initd
 b5bfc08b82bc0d21193714719a719798  xend.initd
 86e7923383a906404da321d1814657e9  xendomains.initd"

testing/xen/librt.patch

@@ -0,0 +1,11 @@
+--- ./tools/ioemu-qemu-xen/Makefile.target.orig
++++ ./tools/ioemu-qemu-xen/Makefile.target
+@@ -520,7 +520,7 @@
+ OBJS+=block-raw-posix.o
+ endif
+ 
+-LIBS+=-lz
++LIBS+=-lz -lrt
+ ifdef CONFIG_ALSA
+ LIBS += -lasound
+ endif