From b559a1e6f0ce94a74d962847f70c8e831e07b030 Mon Sep 17 00:00:00 2001
From: Peter Rajnoha <prajnoha@redhat.com>
Date: Mon, 20 Feb 2012 19:36:27 +0000
Subject: [PATCH] Check whether udev supports built-in blkid.

Built-in blkid is supported since udev v176 - set the UDEV_HAS_BUILTIN_BLKID
variable appropriately so we can use it in the rules to call the built-in
blkid conditionaly.
---
 configure    | 15 +++++++++++++++
 configure.in | 12 ++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/configure b/configure
index d4d14bc8d..836ad1378 100755
--- a/configure
+++ b/configure
@@ -606,6 +606,7 @@ kerneldir
 interface
 DMEVENTD_PIDFILE
 WRITE_INSTALL
+UDEV_HAS_BUILTIN_BLKID
 UDEV_SYNC
 UDEV_RULES
 UDEV_PC
@@ -8858,6 +8859,19 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $UDEV_RULES" >&5
 $as_echo "$UDEV_RULES" >&6; }
 
+if test x$UDEV_RULES = xyes; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether udev supports builtin blkid" >&5
+$as_echo_n "checking whether udev supports builtin blkid... " >&6; }
+	udev_version=$(udevadm info --version 2>/dev/null)
+	if test -n "$udev_version" && test "$udev_version" -ge 176; then
+		UDEV_HAS_BUILTIN_BLKID=yes
+	else
+		UDEV_HAS_BUILTIN_BLKID=no
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $UDEV_HAS_BUILTIN_BLKID" >&5
+$as_echo "$UDEV_HAS_BUILTIN_BLKID" >&6; }
+fi
+
 ################################################################################
 # Check whether --enable-compat was given.
 if test "${enable_compat+set}" = set; then :
@@ -10393,6 +10407,7 @@ LVM_LIBAPI=`echo "$VER" | $AWK -F '[()]' '{print $2}'`
 
 
 
+
 
 
 ################################################################################
diff --git a/configure.in b/configure.in
index 784cfa1c4..cfa80170c 100644
--- a/configure.in
+++ b/configure.in
@@ -873,6 +873,17 @@ AC_ARG_ENABLE(udev_rules,
 	      UDEV_RULES=$enableval, UDEV_RULES=$UDEV_SYNC)
 AC_MSG_RESULT($UDEV_RULES)
 
+if test x$UDEV_RULES = xyes; then
+	AC_MSG_CHECKING(whether udev supports builtin blkid)
+	udev_version=$(udevadm info --version 2>/dev/null)
+	if test -n "$udev_version" && test "$udev_version" -ge 176; then
+		UDEV_HAS_BUILTIN_BLKID=yes
+	else
+		UDEV_HAS_BUILTIN_BLKID=no
+	fi
+	AC_MSG_RESULT($UDEV_HAS_BUILTIN_BLKID)
+fi
+
 ################################################################################
 dnl -- Compatibility mode
 AC_ARG_ENABLE(compat,
@@ -1454,6 +1465,7 @@ AC_SUBST(UDEV_LIBS)
 AC_SUBST(UDEV_PC)
 AC_SUBST(UDEV_RULES)
 AC_SUBST(UDEV_SYNC)
+AC_SUBST(UDEV_HAS_BUILTIN_BLKID)
 AC_SUBST(CUNIT_LIBS)
 AC_SUBST(CUNIT_CFLAGS)
 AC_SUBST(WRITE_INSTALL)
-- 
2.43.5