dnl There are no module libsystemd-journal and libsystem-login

dnl up systemd version 209

PKG_CHECK_EXISTS([libsystemd],

[HAVE_LIBSYSTEMD=yes],

[HAVE_LIBSYSTEMD=no])

dnl A macro to check presence of systemd on the system

AC_DEFUN([AM_CHECK_SYSTEMD],

[

PKG_CHECK_EXISTS(systemd,

[ HAVE_SYSTEMD=1, AC_SUBST(HAVE_SYSTEMD) ],

[AC_MSG_ERROR([Could not detect systemd presence])])

])

AS_IF([test x$HAVE_LIBSYSTEMD = xyes],

[login_lib_name=libsystemd],

[login_lib_name=libsystemd-login])

AM_COND_IF([HAVE_SYSTEMD],

[AC_DEFINE_UNQUOTED([HAVE_SYSTEMD], 1, [Build with libsystemd support])],

[AC_MSG_NOTICE([Build without libsystemd support])])

AM_COND_IF([HAVE_SYSTEMD],

[PKG_CHECK_MODULES([SYSTEMD_LOGIN],

[$login_lib_name],

[AC_DEFINE_UNQUOTED([HAVE_SYSTEMD_LOGIN], 1,

[Build with libsystemdlogin support])

],

[AC_MSG_NOTICE([Build without libsystemd-login support])])])

dnl A macro to check presence of journald on the system

AC_DEFUN([AM_CHECK_JOURNALD],

[

AS_IF([test x$HAVE_LIBSYSTEMD = xyes],

[journal_lib_name=libsystemd],

[journal_lib_name=libsystemd-journal])

PKG_CHECK_MODULES(JOURNALD, [$journal_lib_name],

[AC_DEFINE_UNQUOTED([WITH_JOURNALD], 1,

[journald is available])])

dnl Some older versions of pkg-config might not set these automatically

dnl while setting CFLAGS and LIBS manually twice doesn't hurt.

AC_SUBST([JOURNALD_CFLAGS])

AC_SUBST([JOURNALD_LIBS])

])