xen: upgrade to 4.12.0

Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

recipes-extended/xen/files/0001-python-pygrub-pass-DISTUTILS-xen.4.12.patch

@@ -9,21 +9,20 @@ This is especially useful when the target libdir is not the default one
 (/usr/lib), but for example /usr/lib64.
 
 Signed-off-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>
----
+
- tools/pygrub/Makefile | 5 +++--
+Forward-ported to Xen 4.12.0
- tools/python/Makefile | 4 ++--
+Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
- 2 files changed, 5 insertions(+), 4 deletions(-)
 
 diff --git a/tools/pygrub/Makefile b/tools/pygrub/Makefile
-index 536af07932b4..e1c773101412 100644
+index 3063c49..513314b 100644
 --- a/tools/pygrub/Makefile
 +++ b/tools/pygrub/Makefile
 @@ -10,14 +10,15 @@ INSTALL_LOG = build/installed_files.txt
  all: build
  .PHONY: build
  build:
--	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" $(PYTHON) setup.py build
+-	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build
-+	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" $(PYTHON) setup.py build $(DISTUTILS_BUILD_ARGS)
++	CC="$(CC)" CFLAGS="$(PY_CFLAGS)" LDFLAGS="$(PY_LDFLAGS)" $(PYTHON) setup.py build $(DISTUTILS_BUILD_ARGS)
  
  .PHONY: install
  install: all
@@ -37,7 +36,7 @@ index 536af07932b4..e1c773101412 100644
  	             "`readlink -f $(DESTDIR)/$(bindir)`" != \
  	             "`readlink -f $(LIBEXEC_BIN)`" ]; then \
 diff --git a/tools/python/Makefile b/tools/python/Makefile
-index 541858e2f886..4d4a344f1d33 100644
+index 541858e..4d4a344 100644
 --- a/tools/python/Makefile
 +++ b/tools/python/Makefile
 @@ -10,7 +10,7 @@ INSTALL_LOG = build/installed_files.txt
@@ -58,6 +57,3 @@ index 541858e2f886..4d4a344f1d33 100644
  
  	$(INSTALL_PROG) scripts/convert-legacy-stream $(DESTDIR)$(LIBEXEC_BIN)
  	$(INSTALL_PROG) scripts/verify-stream-v2 $(DESTDIR)$(LIBEXEC_BIN)
--- 
-2.7.4
-

recipes-extended/xen/files/tools-xentop-vwprintw.patch

@@ -1,25 +0,0 @@
-tools/xentop : fix vwprintw -Werror=deprecated-declarations warning
-
-gcc-8.1 complains:
-
-| xentop.c: In function 'print':
-| xentop.c:304:4: error: 'vwprintw' is deprecated [-Werror=deprecated-declarations]
-|     vwprintw(stdscr, (curses_str_t)fmt, args);
-|     ^~~~~~~~
-
-vw_printw is the non-deprecated alternative.
-
-Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
-diff --git a/tools/xenstat/xentop/xentop.c b/tools/xenstat/xentop/xentop.c
-index 2fd2b67..c465810 100644
---- a/tools/xenstat/xentop/xentop.c
-+++ b/tools/xenstat/xentop/xentop.c
-@@ -301,7 +301,7 @@ static void print(const char *fmt, ...)
- 	if (!batch) {
- 		if((current_row() < lines()-1)) {
- 			va_start(args, fmt);
--			vwprintw(stdscr, (curses_str_t)fmt, args);
-+			vw_printw(stdscr, (curses_str_t)fmt, args);
- 			va_end(args);
- 		}
- 	} else {

recipes-extended/xen/files/xen-4.11-arm-acpi-fix-string-lengths.patch

@@ -1,101 +0,0 @@
-From 5e1a00969afe98a713bf14d1ba1902403b60e287 Mon Sep 17 00:00:00 2001
-From: Christopher Clark <christopher.w.clark@gmail.com>
-Date: Thu, 16 Aug 2018 13:04:52 -0700
-Subject: [PATCH v2] libxl/arm: Fix build on arm64 + acpi w/ gcc 8.2
-To: xen-devel@lists.xenproject.org
-Cc: wei.liu2@citrix.com,
-    ian.jackson@eu.citrix.com,
-    julien.grall@arm.com,
-    sstabellini@kernel.org
-
-[modified for Xen 4.11 to add required: #include <xen-tools/libs.h>]
-
-Add zero-padding to #defined ACPI table strings that are copied.
-Provides sufficient characters to satisfy the length required to
-fully populate the destination and prevent array-bounds warnings.
-Add BUILD_BUG_ON sizeof checks for compile-time length checking.
-
-Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
-Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
-Acked-by: Wei Liu <wei.liu2@citrix.com>
----
-v2: add BUILD_BUG_ON length checks, requested by Wei.
-
-v1: Please add this patch to the backport list for the next minor
-    4.11 release.
-
-Prior to this: gcc 8.2 objects to memcpy past bounds:
-
-| libxl_arm_acpi.c: In function 'make_acpi_header':
-| libxl_arm_acpi.c:208:5: error: 'memcpy' forming offset [5, 6] is out
-of the bounds [0, 4] [-Werror=array-bounds]
-|      memcpy(h->oem_id, ACPI_OEM_ID, sizeof(h->oem_id));
-|      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-| libxl_arm_acpi.c:209:5: error: 'memcpy' forming offset [5, 8] is out
-of the bounds [0, 4] [-Werror=array-bounds]
-|      memcpy(h->oem_table_id, ACPI_OEM_TABLE_ID,
-sizeof(h->oem_table_id));
-|
-^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-| libxl_arm_acpi.c:211:5: error: 'memcpy' forming offset 4 is out of the
-bounds [0, 3] [-Werror=array-bounds]
-|      memcpy(h->asl_compiler_id, ACPI_ASL_COMPILER_ID,
-|      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-|             sizeof(h->asl_compiler_id));
-|             ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-| In function 'make_acpi_rsdp.isra.4',
-|     inlined from 'libxl__prepare_acpi' at libxl_arm_acpi.c:389:5:
-| libxl_arm_acpi.c:193:5: error: 'memcpy' forming offset [5, 6] is out
-of the bounds [0, 4] [-Werror=array-bounds]
-|      memcpy(rsdp->oem_id, ACPI_OEM_ID, sizeof(rsdp->oem_id));
-|      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
- tools/libxl/libxl_arm_acpi.c | 10 +++++++---
- 1 file changed, 7 insertions(+), 3 deletions(-)
-
-diff --git a/tools/libxl/libxl_arm_acpi.c b/tools/libxl/libxl_arm_acpi.c
-index 636f724..8924396 100644
---- a/tools/libxl/libxl_arm_acpi.c
-+++ b/tools/libxl/libxl_arm_acpi.c
-@@ -29,6 +29,7 @@ typedef int64_t s64;
- 
- #include <acpi/acconfig.h>
- #include <acpi/actbl.h>
-+#include <xen-tools/libs.h>
- 
- #ifndef BITS_PER_LONG
- #ifdef _LP64
-@@ -48,9 +49,9 @@ extern const unsigned char dsdt_anycpu_arm[];
- _hidden
- extern const int dsdt_anycpu_arm_len;
- 
--#define ACPI_OEM_ID "Xen"
--#define ACPI_OEM_TABLE_ID "ARM"
--#define ACPI_ASL_COMPILER_ID "XL"
-+#define ACPI_OEM_ID "Xen\0\0"
-+#define ACPI_OEM_TABLE_ID "ARM\0\0\0\0"
-+#define ACPI_ASL_COMPILER_ID "XL\0"
- 
- enum {
-     RSDP,
-@@ -190,6 +191,7 @@ static void make_acpi_rsdp(libxl__gc *gc, struct xc_dom_image *dom,
-     struct acpi_table_rsdp *rsdp = (void *)dom->acpi_modules[0].data + offset;
- 
-     memcpy(rsdp->signature, "RSD PTR ", sizeof(rsdp->signature));
-+    BUILD_BUG_ON(sizeof(ACPI_OEM_ID) != sizeof(rsdp->oem_id));
-     memcpy(rsdp->oem_id, ACPI_OEM_ID, sizeof(rsdp->oem_id));
-     rsdp->length = acpitables[RSDP].size;
-     rsdp->revision = 0x02;
-@@ -205,9 +207,12 @@ static void make_acpi_header(struct acpi_table_header *h, const char *sig,
-     memcpy(h->signature, sig, 4);
-     h->length = len;
-     h->revision = rev;
-+    BUILD_BUG_ON(sizeof(ACPI_OEM_ID) != sizeof(h->oem_id));
-     memcpy(h->oem_id, ACPI_OEM_ID, sizeof(h->oem_id));
-+    BUILD_BUG_ON(sizeof(ACPI_OEM_TABLE_ID) != sizeof(h->oem_table_id));
-     memcpy(h->oem_table_id, ACPI_OEM_TABLE_ID, sizeof(h->oem_table_id));
-     h->oem_revision = 0;
-+    BUILD_BUG_ON(sizeof(ACPI_ASL_COMPILER_ID) != sizeof(h->asl_compiler_id));
-     memcpy(h->asl_compiler_id, ACPI_ASL_COMPILER_ID,
-            sizeof(h->asl_compiler_id));
-     h->asl_compiler_revision = 0;

recipes-extended/xen/files/xen-disable-sse-before-inlines.patch

@@ -1,140 +0,0 @@
-From 6d50ae155c0f736aa6239eabf1bc8c8e3704742d Mon Sep 17 00:00:00 2001
-From: Christopher Clark <christopher.w.clark@gmail.com>
-Date: Fri, 21 Sep 2018 08:28:02 -0700
-Subject: [PATCH v2] fuzz, test x86_emulator: disable sse before including
- always_inline fns
-To: xen-devel@lists.xenproject.org,
-    jbeulich@suse.com
-Cc: ian.jackson@eu.citrix.com,
-    wei.liu2@citrix.com,
-    andrew.cooper3@citrix.com
-
-Workaround for compiler rejection of SSE-using always_inlines defined before
-SSE is disabled.
-
-Compiling with _FORTIFY_SOURCE or higher levels of optimization enabled
-will always_inline several library fns (memset, memcpy, ...)
-(with gcc 8.2.0 and glibc 2.28).
-
-In fuzz and x86_emulator test, the compiler is instructed not
-to generate SSE instructions via: #pragma GCC target("no-sse")
-because those registers are needed for use by the workload.
-
-The combination above causes compilation failure as the inline functions
-use those instructions. This is resolved by reordering the inclusion of
-<stdio.h> and <string.h> to after the pragma disabling SSE generation.
-
-It would be preferable to locate the no-sse pragma within x86-emulate.h at the
-top of the file, prior to including any other headers; unfortunately doing so
-before <stdlib.h> causes compilation failure due to declaration of 'atof' with:
-  "SSE register return with SSE disabled".
-Fortunately there is no (known) current dependency on any always_inline
-SSE-inclined function declared in <stdlib.h> or any of its dependencies, so the
-pragma is therefore issued immediately after inclusion of <stdlib.h> with a
-comment introduced to explain its location there.
-
-Add compile-time checks for unwanted prior inclusion of <string.h> and
-<stdio.h>, which are the two headers that provide the library functions that
-are handled with wrappers and listed within "x86-emulate.h" as ones "we think
-might access any of the FPU state".
-* Use standard-defined "EOF" macro to detect prior <stdio.h> inclusion.
-* Use "_STRING_H" (non-standardized guard macro) as best-effort
-  for detection of prior <string.h> inclusion. This is non-universally
-  viable but will provide error output on common GLIBC systems, so
-  provides some defensive coverage.
-
-Adds conditional #include <stdio.h> to x86-emulate.h because fwrite, printf,
-etc. are referenced when WRAP has been defined.
-
-Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
-Reviewed-by: Jan Beulich <jbeulich@suse.com>
----
- tools/fuzz/x86_instruction_emulator/fuzz-emul.c | 10 +++++++--
- tools/tests/x86_emulator/wrappers.c             |  1 -
- tools/tests/x86_emulator/x86-emulate.h          | 28 +++++++++++++++++++++++--
- 3 files changed, 34 insertions(+), 5 deletions(-)
-
-diff --git a/tools/fuzz/x86_instruction_emulator/fuzz-emul.c b/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
-index 03a2473..0ffd0fb 100644
---- a/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
-+++ b/tools/fuzz/x86_instruction_emulator/fuzz-emul.c
-@@ -6,9 +6,7 @@
- #include <stdbool.h>
- #include <stddef.h>
- #include <stdint.h>
--#include <stdio.h>
- #include <stdlib.h>
--#include <string.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <sys/mman.h>
-@@ -16,6 +14,14 @@
- #include <xen/xen.h>
- 
- #include "x86-emulate.h"
-+/*
-+ * include "x86-emulate.h" prior to <stdio.h> and <string.h>:
-+ * x86-emulate.h disables use of SSE registers, while <stdio.h> and <string.h>
-+ * declare functions that may be always_inline and use those registers
-+ * unless they have been disabled earlier, which can fail to compile.
-+ */
-+#include <stdio.h>
-+#include <string.h>
- #include "fuzz-emul.h"
- 
- #define MSR_INDEX_MAX 16
-diff --git a/tools/tests/x86_emulator/wrappers.c b/tools/tests/x86_emulator/wrappers.c
-index d02013c..eba7cc9 100644
---- a/tools/tests/x86_emulator/wrappers.c
-+++ b/tools/tests/x86_emulator/wrappers.c
-@@ -1,5 +1,4 @@
- #include <stdarg.h>
--#include <stdio.h>
- 
- #define WRAP(x) typeof(x) emul_##x
- #include "x86-emulate.h"
-diff --git a/tools/tests/x86_emulator/x86-emulate.h b/tools/tests/x86_emulator/x86-emulate.h
-index b249e46..07ea1e8 100644
---- a/tools/tests/x86_emulator/x86-emulate.h
-+++ b/tools/tests/x86_emulator/x86-emulate.h
-@@ -3,11 +3,35 @@
- #include <stddef.h>
- #include <stdint.h>
- #include <stdlib.h>
--#include <string.h>
--
-+/*
-+ * Use of sse registers must be disabled prior to the definition of
-+ * always_inline functions that would use them (memcpy, memset, etc),
-+ * so do this as early as possible, aiming to be before any always_inline
-+ * functions that are used are declared.
-+ * Unfortunately, this cannot be done prior to inclusion of <stdlib.h>
-+ * due to functions such as 'atof' that have SSE register return declared,
-+ * so do so here, immediately after that.
-+ */
- #if __GNUC__ >= 6
- #pragma GCC target("no-sse")
- #endif
-+ /*
-+ * Attempt detection of unwanted prior inclusion of some headers known to use
-+ * always_inline with SSE registers in some library / compiler / optimization
-+ * combinations.
-+ */
-+#ifdef _STRING_H
-+#error "Must not include <string.h> before x86-emulate.h"
-+#endif
-+#include <string.h>
-+
-+/* EOF is a standard macro defined in <stdio.h> so use it for detection */
-+#ifdef EOF
-+#error "Must not include <stdio.h> before x86-emulate.h"
-+#endif
-+#ifdef WRAP
-+#include <stdio.h>
-+#endif
- 
- #include <xen/xen.h>
- 
--- 
-2.1.4
-

recipes-extended/xen/files/xen-tools-xenpmd-snprintf.patch

@@ -1,78 +0,0 @@
-From e4d78a67ffbacf30b66464080898227f18f6bf49 Mon Sep 17 00:00:00 2001
-From: Christopher Clark <christopher.w.clark@gmail.com>
-Date: Fri, 17 Aug 2018 17:46:10 -0700
-Subject: [PATCH] xenpmd: prevent format-truncation warning with gcc 8.2 + ARM
- 32-bit
-To: xen-devel@lists.xenproject.org
-Cc: ian.jackson@eu.citrix.com,
-    wei.liu2@citrix.com
-
-xenpmd writes battery information to xenstore, including a string with a
-formatted hex value calculated from summing the lengths of four strings,
-plus some constants.
-
-Each of the four strings has a maximum length of 31 bytes, excluding the
-terminating zero byte. The strings are stored in 32-byte arrays in a
-struct that is zeroed before it is populated, and logic that writes to
-the strings uses strncpy and explicit zero termination.
-
-The maximum value to be supplied to the xenstore string is:
-  (9 * 4) + (31 * 4) + 4 , which is 164, ie. 0xa4.
-
-When used with this value, '%02x' will always fit within 3 bytes, but
-gcc 8.2 is apparently not able to deduce this (observed when building
-for a 32-bit ARM platform).
-
-This commit assists the compiler by applying a mask (0xff) to the value,
-enabling it to observe a lower maximum value and so pass the truncation
-length check.
-
-Prior to this change, building fails with the compiler warning:
-
-| xenpmd.c: In function 'write_battery_info_to_xenstore':
-| xenpmd.c:354:23: error: '%02x' directive output may be truncated
-writing between 2 and 8 bytes into a region of size 3
-[-Werror=format-truncation=]
-|      snprintf(val, 3, "%02x",
-|                        ^~~~
-| xenpmd.c:354:22: note: directive argument in the range [40, 2147483778]
-|      snprintf(val, 3, "%02x",
-|                       ^~~~~~
-| xenpmd.c:354:5: note: 'snprintf' output between 3 and 9 bytes into a
-destination of size 3
-|      snprintf(val, 3, "%02x",
-|      ^~~~~~~~~~~~~~~~~~~~~~~~
-|               (unsigned int)(9*4 +
-|               ~~~~~~~~~~~~~~~~~~~~
-|                              strlen(info->model_number) +
-|                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-|                              strlen(info->serial_number) +
-|                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-|                              strlen(info->battery_type) +
-|                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-|                              strlen(info->oem_info) + 4));
-|                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-| cc1: all warnings being treated as errors
-
-Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
----
- tools/xenpmd/xenpmd.c | 6 ++++--
- 1 file changed, 4 insertions(+), 2 deletions(-)
-
-diff --git a/tools/xenpmd/xenpmd.c b/tools/xenpmd/xenpmd.c
-index 56412a9..0c0787e 100644
---- a/tools/xenpmd/xenpmd.c
-+++ b/tools/xenpmd/xenpmd.c
-@@ -350,8 +350,10 @@ void write_battery_info_to_xenstore(struct battery_info *info)
-    
-     memset(val, 0, 1024);
-     memset(string_info, 0, 256);
--    /* write 9 dwords (so 9*4) + length of 4 strings + 4 null terminators */
--    snprintf(val, 3, "%02x", 
-+    /* write 9 dwords (so 9*4) + length of 4 strings + 4 null terminators.
-+     * mask informs the compiler that format truncation will not occur.
-+     */
-+    snprintf(val, 3, "%02x", 0xff &
-              (unsigned int)(9*4 +
-                             strlen(info->model_number) +
-                             strlen(info->serial_number) +

recipes-extended/xen/xen.inc

@@ -383,13 +383,21 @@ FILES_${PN}-libblktap-dev = " \
     ${datadir}/pkgconfig/blktap.pc \
     "
 
-FILES_${PN}-libfsimage = "${libdir}/libfsimage.so.*"
+FILES_${PN}-libfsimage = " \
+    ${libdir}/libfsimage.so.* \
+    ${libdir}/libxenfsimage.so.* \
+    "
 FILES_${PN}-libfsimage-dev = " \
     ${libdir}/libfsimage.so \
+    ${libdir}/libxenfsimage.so \
     ${datadir}/pkgconfig/fsimage.pc \
+    ${datadir}/pkgconfig/xenfsimage.pc \
     "
 
-FILES_${PN}-fsimage = "${libdir}/fs/*/*fsimage.so"
+FILES_${PN}-fsimage = " \
+    ${libdir}/fs/*/*fsimage.so \
+    ${libdir}/xenfsimage/*/fsimage.so \
+    "
 
 FILES_${PN}-hypervisor = "\
     /boot/xen-* \
@@ -466,6 +474,7 @@ FILES_${PN}-hvmloader = "\
 
 FILES_${PN}-kdd = "\
     ${sbindir}/kdd \
+    ${sbindir}/xen-kdd \
     "
 
 FILES_${PN}-livepatch += " \
@@ -738,6 +747,7 @@ FILES_${PN}-xenmon = "\
     ${sbindir}/xenbaked \
     ${sbindir}/xentrace_setmask \
     ${sbindir}/xenmon.py \
+    ${sbindir}/xenmon \
     "
 
 FILES_${PN}-xm = "\

recipes-extended/xen/xen_4.11.1.bb

@@ -1,16 +0,0 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
-require xen.inc
-
-SRC_URI = " \
-    https://downloads.xenproject.org/release/xen/${PV}/xen-${PV}.tar.gz \
-    file://tools-xentop-vwprintw.patch \
-    file://xen-4.11-arm-acpi-fix-string-lengths.patch \
-    file://xen-tools-xenpmd-snprintf.patch \
-    file://xen-disable-sse-before-inlines.patch \
-    file://0001-python-pygrub-pass-DISTUTILS-env-vars-as-setup.py-ar.patch \
-    "
-
-SRC_URI[md5sum] = "0c72b97432465e7f81113630fcd6e460"
-SRC_URI[sha256sum] = "be88cb2443761990efc1070d9718016561fe19066af232f9bfae572922897e59"
-
-S = "${WORKDIR}/xen-${PV}"

recipes-extended/xen/xen_4.12.0.bb

@@ -0,0 +1,12 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+require xen.inc
+
+SRC_URI = " \
+    https://downloads.xenproject.org/release/xen/${PV}/xen-${PV}.tar.gz \
+    file://0001-python-pygrub-pass-DISTUTILS-xen.4.12.patch \
+    "
+
+SRC_URI[md5sum] = "7d24d4541e3025421e02384cabc3528b"
+SRC_URI[sha256sum] = "6e5455e4a58dcb2339bfcd2a89842728068b530aa62501843793f7cf743c4d64"
+
+S = "${WORKDIR}/xen-${PV}"

recipes-extended/xen/xen_git.bb

@@ -1,8 +1,8 @@
 require xen.inc
 
-SRCREV ?= "2b50cdbc444c637575580dcfa6c9525a84d5cc62"
+SRCREV ?= "cb70a26f78848fe45f593f7ebc9cfaac760a791b"
 
-XEN_REL = "4.12"
+XEN_REL = "4.13"
 XEN_BRANCH = "staging"
 FLASK_POLICY_FILE = "xenpolicy-${XEN_REL}-unstable"
 
@@ -12,8 +12,7 @@ S = "${WORKDIR}/git"
 
 SRC_URI = " \
     git://xenbits.xen.org/xen.git;branch=${XEN_BRANCH} \
-    file://xen-disable-sse-before-inlines.patch \
+    file://0001-python-pygrub-pass-DISTUTILS-xen.4.12.patch \
-    file://0001-python-pygrub-pass-DISTUTILS-env-vars-as-setup.py-ar.patch \
     "
 
 DEFAULT_PREFERENCE = "-1"