build: detect systemd-journald support

diff --git a/configure.ac b/configure.ac
index c31f27f..11f6ccd 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -376,6 +376,30 @@ elif test "$hostname_persist" = gentoo; then
        AC_DEFINE(HOSTNAME_PERSIST_GENTOO, 1, [Enable Gentoo hostname persist method])
 fi
 
+AC_ARG_WITH(systemd-journal, AS_HELP_STRING([--with-systemd-journal=yes|no], [Use systemd journal for logging]))
+have_systemd_journal=no
+if test "$with_systemd_journal" != "no"; then
+       PKG_CHECK_MODULES(SYSTEMD_JOURNAL,
+                         [libsystemd >= 209],
+                         [have_systemd_journal=yes],
+                         [PKG_CHECK_MODULES(SYSTEMD_JOURNAL,
+                                            [libsystemd-journal],
+                                            [have_systemd_journal=yes],
+                                            [have_systemd_journal=no])])
+       if test "$have_systemd_journal" != "yes"; then
+               if test "$with_systemd_journal" = "yes"; then
+                       AC_MSG_ERROR([Missing systemd-journald support])
+               fi
+       fi
+fi
+if test "$have_systemd_journal" = "yes"; then
+       AC_SUBST(SYSTEMD_JOURNAL_CFLAGS)
+       AC_SUBST(SYSTEMD_JOURNAL_LIBS)
+       AC_DEFINE([SYSTEMD_JOURNAL], 1, [Define to 1 if libsystemd-journald is available])
+else
+       AC_DEFINE([SYSTEMD_JOURNAL], 0, [Define to 1 if libsystemd-journald is available])
+fi
+
 # Session tracking support
 AC_ARG_WITH(systemd-logind, AS_HELP_STRING([--with-systemd-logind=yes|no],
        [Support systemd session tracking]))
@@ -1091,6 +1115,7 @@ else
 fi
 echo "  polkit agent: ${enable_polkit_agent}"
 echo "  selinux: $have_selinux"
+echo "  systemd-journald: $have_systemd_journal"
 echo "  hostname persist: ${hostname_persist}"
 echo