Fix broken udev rules directory detection

diff --git a/configure.ac b/configure.ac
index 3ceecf2..6627248 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -10,6 +10,8 @@ AM_MAINTAINER_MODE
 
 AC_PREFIX_DEFAULT(/usr/local)
 
+PKG_PROG_PKG_CONFIG
+
 COMPILER_FLAGS
 
 AC_SUBST(abs_top_srcdir)
@@ -202,9 +204,11 @@ if (test "${enable_udev}" = "yes"); then
                AC_DEFINE(NEED_UDEV_MONITOR_FILTER, 1,
                        [Define to 1 if you need the
                                        udev_monitor_filter...() functions.]))
-       UDEV_DATADIR="`$PKG_CONFIG --variable=udevdir udev`/rules.d"
+       UDEV_DATADIR="`$PKG_CONFIG --variable=udevdir udev`"
        if (test -z "${UDEV_DATADIR}"); then
                UDEV_DATADIR="${sysconfdir}/udev/rules.d"
+       else
+               UDEV_DATADIR="${UDEV_DATADIR}/rules.d"
        fi
        AC_SUBST(UDEV_DATADIR)
 fi