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# macros for configuring systemd
# Copyright 2015, Sami Kerola, CloudFlare.
# BSD licensed.
AC_ARG_ENABLE([systemd],
[AS_HELP_STRING([--enable-systemd], [compile with systemd support (requires libsystemd, pkg-config)])],
[], [enable_systemd=no])
have_systemd=no
AS_IF([test "x$enable_systemd" != xno], [
if test -n "$PKG_CONFIG"; then
dnl systemd v209 or newer
have_systemd=no
PKG_CHECK_MODULES([SYSTEMD], [libsystemd], [have_systemd=yes], [])
dnl old systemd library
AS_IF([test "x$have_systemd" != "xyes"], [
have_systemd_daemon=no
PKG_CHECK_MODULES([SYSTEMD_DAEMON], [libsystemd-daemon],
[have_systemd_daemon=yes], [])
AS_IF([test "x$have_systemd_daemon" = "xyes"],
[have_systemd=yes])
])
AS_CASE([$enable_systemd:$have_systemd],
[yes:no],
[AC_MSG_ERROR([systemd enabled but libsystemd not found])],
[*:yes],
[AC_DEFINE([HAVE_SYSTEMD], [1], [Define to 1 if systemd should be used])
LIBS="$LIBS $SYSTEMD_LIBS"
]
)
else
AC_MSG_ERROR([systemd enabled but need pkg-config to configure for it])
fi
])
AM_CONDITIONAL([USE_SYSTEMD], [test "x$have_systemd" = xyes])
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