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if test x"$with_syslog" = xjournald || \
test x"$with_initscript" = xsystemd; then
dnl A macro to check presence of systemd on the system
PKG_CHECK_EXISTS([systemd],
[HAVE_SYSTEMD=yes],
[HAVE_SYSTEMD=no])
dnl Libraries libsystemd-journal and libsystem-login are deprecarted
dnl since systemd 209 and are removed in systemd 230. The library libsystemd
dnl is replacement of libsystemd-{login,journal,daemon,id128} libraries
PKG_CHECK_EXISTS([libsystemd],
[HAVE_LIBSYSTEMD=yes],
[HAVE_LIBSYSTEMD=no])
AS_IF([test x$HAVE_LIBSYSTEMD = xyes],
[login_lib_name=libsystemd],
[login_lib_name=libsystemd-login])
AS_IF([test x$HAVE_SYSTEMD = xyes],
[AC_DEFINE_UNQUOTED([HAVE_SYSTEMD], 1, [Build with systemd support])],
[AC_MSG_NOTICE([Build without systemd support])])
AS_IF([test x$HAVE_SYSTEMD = xyes],
[PKG_CHECK_MODULES(
[SYSTEMD_LOGIN],
[$login_lib_name],
[AC_DEFINE_UNQUOTED([HAVE_SYSTEMD_LOGIN], 1,
[Build with $login_lib_name support])],
[AC_MSG_NOTICE([Build without $login_lib_name support])])],
[AC_MSG_NOTICE([Build without $login_lib_name support])])
AS_IF([test x$HAVE_LIBSYSTEMD = xyes],
[daemon_lib_name=libsystemd],
[daemon_lib_name=libsystemd-daemon])
AS_IF([test x$HAVE_SYSTEMD = xyes],
[PKG_CHECK_MODULES(
[SYSTEMD_DAEMON],
[$daemon_lib_name],
[AC_DEFINE_UNQUOTED([HAVE_SYSTEMD_DAEMON], 1,
[Build with $daemon_lib_name support])],
[AC_MSG_NOTICE([Build without $daemon_lib_name support])])],
[AC_MSG_NOTICE([Build without $daemon_lib_name support])])
dnl A macro to check presence of journald on the system
AC_DEFUN([AM_CHECK_JOURNALD],
[
AS_IF([test x$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])
])
fi
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