package/procps-ng: link the w command with systemd or elogin libs.

The build of procps-ng was broken when systemd was enabled.  Applying
commit ca004d46 of procps-ng upstream to explictly link the 'w'
command to libsystemd or elogind even though libproc2 is linked to it.

This was (likely) broken since the upgrade to procps-ng v4.0.4 with
commit d79f40dbbe98983bc657d4c82d46b38b8283351b.

Fixes: https://gitlab.com/buildroot.org/buildroot/-/issues/28
Fixes: http://autobuild.buildroot.org/results/e8b/e8bae7bfd7d6a7987f3afa199d8d944429144817/build-end.log

Signed-off-by: Hugo Cornelis <hugo.cornelis@essensium.com>
[yann.morin.1998@free.fr: don't number patch 1/1; add fixes tag]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 3b870057c646a6b7abc822d3ce2ea0f41683420b)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/procps-ng/0001-build-sys-Add-systemd-elogind-to-w.patch

@@ -0,0 +1,48 @@
+From 788248ee631b3b5f82073c36320fc3f4a3c8f9ba Mon Sep 17 00:00:00 2001
+From: Craig Small <csmall@dropbear.xyz>
+Date: Thu, 31 Aug 2023 22:24:23 +1000
+Subject: [PATCH] build-sys: Add systemd/elogind to w
+
+Depending on the compiler flags, w needs to be explictly linked
+to libsystemd or elogind even though libproc2 is linked to it.
+
+Signed-off-by: Craig Small <csmall@dropbear.xyz>
+Upstream: https://gitlab.com/procps-ng/procps/-/commit/ca004d4657d5e8b468a4552ede429be53193a3a9
+Signed-off-by: Hugo Cornelis <hugo.cornelis@essensium.com>
+---
+ Makefile.am | 7 +++++++
+ NEWS        | 3 +++
+ 2 files changed, 10 insertions(+)
+
+diff --git a/Makefile.am b/Makefile.am
+index f70c8fb1..ddfc0141 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -149,6 +149,13 @@ endif
+ 
+ dist_man_MANS += man/w.1
+ src_w_SOURCES = src/w.c local/fileutils.c
++src_w_LDADD = $(LDADD)
++if WITH_SYSTEMD
++src_w_LDADD += @SYSTEMD_LIBS@
++endif
++if WITH_ELOGIND
++src_w_LDADD += @ELOGIND_LIBS@
++endif
+ else
+   EXTRA_DIST += man/w.1
+ endif
+diff --git a/NEWS b/NEWS
+index 3f2158d4..4ad9f74e 100644
+--- a/NEWS
++++ b/NEWS
+@@ -1,3 +1,6 @@
++procps-ng-NEXT
++---------------
++
+ procps-ng-4.0.4
+ ---------------
+   * library (API & ABI unchanged)
+-- 
+2.34.1
+

package/procps-ng/procps-ng.mk

@@ -14,6 +14,9 @@ PROCPS_NG_INSTALL_STAGING = YES
 PROCPS_NG_DEPENDENCIES = ncurses host-pkgconf $(TARGET_NLS_DEPENDENCIES)
 PROCPS_NG_CONF_OPTS = LIBS=$(TARGET_NLS_LIBS)
 
+# Applying 0001-build-sys-Add-systemd-elogind-to-w.patch touches Makefile.am
+PROCPS_NG_AUTORECONF = YES
+
 ifeq ($(BR2_PACKAGE_SYSTEMD),y)
 PROCPS_NG_DEPENDENCIES += systemd
 PROCPS_NG_CONF_OPTS += --with-systemd