rsyslog: add systemd build option (disabled by default).

srcpkgs/rsyslog/template

@@ -1,13 +1,13 @@
 # Template file for 'rsyslog'
 pkgname=rsyslog
 version=7.6.3
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--enable-gnutls --enable-mysql --enable-pgsql
  --enable-imdiag --enable-imfile --enable-mail --enable-gssapi-krb5
  --with-systemdsystemunitdir=/usr/lib/systemd/system --enable-zlib
- --enable-imptcp --enable-imttcp --enable-mmsnmptrapd --enable-omjournal
- --enable-impstats --enable-omprog --enable-omstdout --enable-imjournal
+ --enable-imptcp --enable-imttcp --enable-mmsnmptrapd
+ --enable-impstats --enable-omprog --enable-omstdout
  --enable-pmlastmsg --enable-pmcisconames --enable-pmaixforwardedfrom
  --enable-pmsnare --enable-pmrfc3164sd --enable-omuxsock
  --enable-cached-man-pages"
@@ -22,7 +22,7 @@ lib32disabled=yes
 hostmakedepends="pkg-config"
 makedepends="json-c-devel gnutls-devel>=3.1.5 postgresql-libs-devel
  libmysqlclient-devel>=5.5.27 mit-krb5-devel libestr-devel>=0.1.9
- libee-devel>=0.4.1 liblogging-devel>=1.0.2 systemd-devel"
+ libee-devel>=0.4.1 liblogging-devel>=1.0.2"
 conf_files="/etc/rsyslog.conf"
 systemd_services="rsyslog.service on"
 provides="syslog-daemon-0_1"
@@ -39,6 +39,17 @@ if [ "$CROSS_BUILD" ]; then
 	}
 fi
 
+# Package build options
+build_options="systemd"
+desc_option_systemd="Enable support for systemd journal"
+
+if [ "$build_option_systemd" ]; then
+	configure_args+=" --enable-imjournal --enable-omjournal"
+	makedepends+=" systemd-devel"
+else
+	configure_args+=" --disable-imjournal --disable-omjournal"
+fi
+
 post_configure() {
 	echo "rsyslogd_LDADD += \$(LIBESTR_LIBS) -lm" >> tools/Makefile
 }