FIXME: drop this patch and just fix PATH_LOCALSTATEDIR ?
---- syslog-ng-3.6.2/lib/syslog-ng.h~ 2014-12-15 16:48:45.000000000 +0200
-+++ syslog-ng-3.6.2/lib/syslog-ng.h 2015-06-01 08:04:18.542588343 +0300
+diff -urNp -x '*.orig' syslog-ng-syslog-ng-4.2.0.org/lib/syslog-ng.h syslog-ng-syslog-ng-4.2.0/lib/syslog-ng.h
+--- syslog-ng-syslog-ng-4.2.0.org/lib/syslog-ng.h 2023-05-10 16:55:07.000000000 +0200
++++ syslog-ng-syslog-ng-4.2.0/lib/syslog-ng.h 2023-07-18 21:48:11.436408132 +0200
@@ -42,7 +42,7 @@
#if SYSLOG_NG_ENABLE_ENV_WRAPPER
#define PATH_SYSLOGNG SYSLOG_NG_PATH_LIBEXECDIR "/syslog-ng"
typedef struct _LogPipe LogPipe;
typedef struct _LogMessage LogMessage;
---- syslog-ng-3.2.2/scripts/update-patterndb.in~ 2010-11-20 09:47:33.000000000 +0100
-+++ syslog-ng-3.2.2/scripts/update-patterndb.in 2011-01-27 20:43:14.656000204 +0100
-@@ -3,6 +3,6 @@
+diff -urNp -x '*.orig' syslog-ng-syslog-ng-4.2.0.org/scripts/update-patterndb.in syslog-ng-syslog-ng-4.2.0/scripts/update-patterndb.in
+--- syslog-ng-syslog-ng-4.2.0.org/scripts/update-patterndb.in 2023-05-10 16:55:07.000000000 +0200
++++ syslog-ng-syslog-ng-4.2.0/scripts/update-patterndb.in 2023-07-18 21:48:11.436408132 +0200
+@@ -3,6 +3,6 @@ prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@
sysconfdir=@sysconfdir@
-localstatedir=@localstatedir@
+localstatedir=/var/lib/syslog-ng
- ${bindir}/pdbtool merge -r --glob *.pdb -D ${sysconfdir}/patterndb.d -p ${localstatedir}/patterndb.xml
+ ${bindir}/pdbtool merge -r --glob \*.pdb -D ${sysconfdir}/patterndb.d -p ${localstatedir}/patterndb.xml