[Buildroot] [PATCH 1/1] meson: fix error when restorecon unavailable

[Fabrice Fontaine]

host-meson is used by some packages such as libmpdclient.
If selinuxenabled is installed on host but restorecon is unavailable
(for an "unknwown" reason), install will crash.

Fixes:
 - http://autobuild.buildroot.net/results/d5dcdfdfab3503fdc387f99e68267972a38c417d

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 ...NotFoundError-when-restorecon-unavailable.patch | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 package/meson/0001-Fix-FileNotFoundError-when-restorecon-unavailable.patch

diff --git a/package/meson/0001-Fix-FileNotFoundError-when-restorecon-unavailable.patch b/package/meson/0001-Fix-FileNotFoundError-when-restorecon-unavailable.patch
new file mode 100644
index 0000000000..d2737f7fab
--- /dev/null
+++ b/package/meson/0001-Fix-FileNotFoundError-when-restorecon-unavailable.patch
@@ -0,0 +1,33 @@
+From 5aa4320566f25db2bbe1a1069d795ba728413e92 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+Date: Tue, 13 Mar 2018 18:52:36 +0100
+Subject: [PATCH] Fix FileNotFoundError when restorecon unavailable
+
+Fixes:
+ - http://autobuild.buildroot.net/results/d5dcdfdfab3503fdc387f99e68267972a38c417d
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+---
+ mesonbuild/scripts/meson_install.py | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/mesonbuild/scripts/meson_install.py b/mesonbuild/scripts/meson_install.py
+index f895f17d..4e9cfa74 100644
+--- a/mesonbuild/scripts/meson_install.py
++++ b/mesonbuild/scripts/meson_install.py
+@@ -97,6 +97,12 @@ def restore_selinux_contexts():
+         # is ignored quietly.
+         return
+ 
++    try:
++        subprocess.check_call(['restorecon'])
++    except (FileNotFoundError, PermissionError, subprocess.CalledProcessError) as e:
++        # If we don't have restorecon, failure is ignored quietly.
++        return
++
+     with subprocess.Popen(['restorecon', '-F', '-f-', '-0'],
+                           stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE) as proc:
+         out, err = proc.communicate(input=b'\0'.join(os.fsencode(f) for f in selinux_updates) + b'\0')
+-- 
+2.14.1
+
-- 
2.14.1