From 027049d270725f91bc3db6df7e902514cc660528 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 26 Sep 2010 17:36:39 +0900
Subject: [PATCH 1/1] udev: Print error when udev support is not available and
 not disabled

---
 configure.ac | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index 6dc3546..6928cf3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -361,10 +361,8 @@ AC_ARG_ENABLE(udev, AC_HELP_STRING([--disable-udev],
 			[don't use udev support even if available]),
 						[enable_udev=${enableval}])
 if (test "${enable_udev}" != "no"); then
-	PKG_CHECK_MODULES(UDEV, libudev >= 143,
-				[enable_udev="yes"], [enable_udev="no"])
-fi
-if (test "${enable_udev}" = "yes"); then
+	PKG_CHECK_MODULES(UDEV, libudev >= 143, [enable_udev="yes"],
+				AC_MSG_ERROR(libudev >= 143 is required))
 	UDEV_DATADIR="`$PKG_CONFIG --variable=udevdir udev`"
 	if (test -z "${UDEV_DATADIR}"); then
 		UDEV_DATADIR="${sysconfdir}/udev/rules.d"
-- 
2.7.4