sudo: fix multilib conflict

It fails to install sudo and lib32-sudo at same time:

| Error: Transaction test error:
|  file /usr/libexec/sudo/audit_json.so conflicts between attempted
     installs of lib32-sudo-1.9.3p1-r0.core2_32 and sudo-1.9.3p1-r0.core2_64
|  file /usr/libexec/sudo/group_file.so conflicts between attempted
     installs of lib32-sudo-1.9.3p1-r0.core2_32 and sudo-1.9.3p1-r0.core2_64

Pass ${libdir} to configure option --libexecdir of sudo that it installs
plugin libraries to /usr/lib{,64} rather than /usr/libexec/. Then add a
patch to fix multilib conflict of sudo.conf.

[RP: Add missing Upstream-Status]
(From OE-Core rev: c9b6974cfcac370c6848d28400e0546ac85512e9)

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/sudo/files/0001-sudo.conf.in-fix-conflict-with-multilib.patch

@@ -0,0 +1,52 @@
+sudo.conf.in: fix conflict with multilib
+
+When pass ${libdir} to --libexecdir of sudo, it fails to install sudo
+and lib32-sudo at same time:
+
+| Error: Transaction test error:
+|  file /etc/sudo.conf conflicts between attempted installs of
+     sudo-1.9.3p1-r0.core2_64 and lib32-sudo-1.9.3p1-r0.core2_32
+
+Update the comments in sudo.conf.in to avoid the conflict.
+
+Signed-off-by: Kai Kang <kai.kang@windriver.com>
+
+Upstream-Status: Inappropriate [OE configuration specific]
+---
+ examples/sudo.conf.in | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/examples/sudo.conf.in b/examples/sudo.conf.in
+index 19e33ff..af78235 100644
+--- a/examples/sudo.conf.in
++++ b/examples/sudo.conf.in
+@@ -4,7 +4,7 @@
+ # Sudo plugins:
+ #   Plugin plugin_name plugin_path plugin_options ...
+ #
+-# The plugin_path is relative to @plugindir@ unless
++# The plugin_path is relative to $plugindir such as /usr/lib/sudo unless
+ #   fully qualified.
+ # The plugin_name corresponds to a global symbol in the plugin
+ #   that contains the plugin interface structure.
+@@ -50,7 +50,7 @@ Plugin sudoers_audit sudoers.so
+ # The compiled-in value is usually sufficient and should only be changed
+ # if you rename or move the sudo_noexec.so file.
+ #
+-#Path noexec @plugindir@/sudo_noexec.so
++#Path noexec $plugindir/sudo_noexec.so
+ 
+ #
+ # Sudo plugin directory:
+@@ -59,7 +59,7 @@ Plugin sudoers_audit sudoers.so
+ # The default directory to use when searching for plugins that are
+ # specified without a fully qualified path name.
+ #
+-#Path plugin_dir @plugindir@
++#Path plugin_dir $plugindir
+ 
+ #
+ # Sudo developer mode:
+--
+2.17.1
+

meta/recipes-extended/sudo/sudo_1.9.3p1.bb

@@ -2,6 +2,7 @@ require sudo.inc
 
 SRC_URI = "https://www.sudo.ws/dist/sudo-${PV}.tar.gz \
            ${@bb.utils.contains('DISTRO_FEATURES', 'pam', '${PAM_SRC_URI}', '', d)} \
+           file://0001-sudo.conf.in-fix-conflict-with-multilib.patch \
            "
 
 PAM_SRC_URI = "file://sudo.pam"
@@ -24,6 +25,7 @@ EXTRA_OECONF += " \
              ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', '--enable-tmpfiles.d=${nonarch_libdir}/tmpfiles.d', '--disable-tmpfiles.d', d)} \
              --with-rundir=/run/sudo \
              --with-vardir=/var/lib/sudo \
+             --libexecdir=${libdir} \
              "
 
 do_install_append () {
@@ -43,5 +45,5 @@ do_install_append () {
 }
 
 FILES_${PN} += "${nonarch_libdir}/tmpfiles.d"
-FILES_${PN}-dev += "${libexecdir}/${BPN}/lib*${SOLIBSDEV} ${libexecdir}/${BPN}/*.la \
-                    ${libexecdir}/lib*${SOLIBSDEV} ${libexecdir}/*.la"
+FILES_${PN}-dev += "${libdir}/${BPN}/lib*${SOLIBSDEV} ${libdir}/${BPN}/*.la \
+                    ${libdir}/lib*${SOLIBSDEV} ${libdir}/*.la"