From 1999e368f16cf7537c553be573809713213fdacd Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Mon, 7 Sep 2015 13:58:54 +0200
Subject: [PATCH] configure: simpler version reading

Avoid calling 'cat' when 'read' could handle it.

Also drop DM_LIB_VERSION from AC_SUBST as it's not used anywhere
in .in file.
---
 configure.in | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/configure.in b/configure.in
index 484367838..31f4b3a55 100644
--- a/configure.in
+++ b/configure.in
@@ -1888,14 +1888,14 @@ test "$interface" != ioctl && AC_MSG_ERROR([--with-interface=ioctl required. fs
 AC_MSG_RESULT($interface)
 
 ################################################################################
-DM_LIB_VERSION="\"`cat "$srcdir"/VERSION_DM 2>/dev/null || echo Unknown`\""
-AC_DEFINE_UNQUOTED(DM_LIB_VERSION, $DM_LIB_VERSION, [Library version])
+read DM_LIB_VERSION < "$srcdir"/VERSION_DM 2>/dev/null || DM_LIB_VERSION=Unknown
+AC_DEFINE_UNQUOTED(DM_LIB_VERSION, "$DM_LIB_VERSION", [Library version])
 
 DM_LIB_PATCHLEVEL=`cat "$srcdir"/VERSION_DM | $AWK -F '[[-. ]]' '{printf "%s.%s.%s",$1,$2,$3}'`
 
-LVM_VERSION="\"`cat "$srcdir"/VERSION 2>/dev/null || echo Unknown`\""
+read VER < "$srcdir"/VERSION 2>/dev/null || VER=Unknown
 
-VER=`cat "$srcdir"/VERSION`
+LVM_VERSION=\"$VER\"
 LVM_RELEASE_DATE="\"`echo $VER | $SED 's/.* (//;s/).*//'`\""
 VER=`echo "$VER" | $AWK '{print $1}'`
 LVM_RELEASE="\"`echo "$VER" | $AWK -F '-' '{print $2}'`\""
@@ -1963,7 +1963,6 @@ AC_SUBST(DLM_LIBS)
 AC_SUBST(DL_LIBS)
 AC_SUBST(DMEVENTD)
 AC_SUBST(DMEVENTD_PATH)
-AC_SUBST(DM_LIB_VERSION)
 AC_SUBST(DM_LIB_PATCHLEVEL)
 AC_SUBST(ELDFLAGS)
 AC_SUBST(FSADM)