[PATCH] Change head/tail call in build/buildcheck.sh

Hi.

This is a trivial patch to replace the older format of head/tail calls
with the newer format using '-n'. Newer GNU coreutils will error out
when calling head/tail and a numeric argument without the '-n'.

Art Haas

Index: build/buildcheck.sh
===================================================================
--- build/buildcheck.sh (revision 7012)
+++ build/buildcheck.sh (working copy)
@@ -16,7 +16,7 @@
 #--------------------------------------------------------------------------
 # autoconf 2.50 or newer
 #
-ac_version=`${AUTOCONF:-autoconf} --version 2>/dev/null|head -1| sed -e 's/^[^0-9]*//' -e 's/[a-z]* *$//'`
+ac_version=`${AUTOCONF:-autoconf} --version 2>/dev/null|head -n 1| sed -e 's/^[^0-9]*//' -e 's/[a-z]* *$//'`
 if test -z "$ac_version"; then
   echo "buildcheck: autoconf not found."
   echo " You need autoconf version 2.50 or newer installed."
@@ -38,7 +38,7 @@
 #--------------------------------------------------------------------------
 # autoheader 2.50 or newer
 #
-ah_version=`${AUTOHEADER:-autoheader} --version 2>/dev/null|head -1| sed -e 's/^[^0-9]*//' -e 's/[a-z]* *$//'`
+ah_version=`${AUTOHEADER:-autoheader} --version 2>/dev/null|head -n 1| sed -e 's/^[^0-9]*//' -e 's/[a-z]* *$//'`
 if test -z "$ah_version"; then
   echo "buildcheck: autoheader not found."
   echo " You need autoheader version 2.50 or newer installed."
@@ -83,7 +83,7 @@
 if test ! -x "$libtool"; then
   libtool=`which libtool`
 fi
-lt_pversion=`$libtool --version 2>/dev/null|head -1|sed -e 's/^[^0-9]*//' -e 's/[- ].*//'`
+lt_pversion=`$libtool --version 2>/dev/null|head -n 1|sed -e 's/^[^0-9]*//' -e 's/[- ].*//'`
 if test -z "$lt_pversion"; then
   echo "buildcheck: libtool not found."
   echo " You need libtool version $LIBTOOL_WANTED_VERSION or newer installed"

-- 
Man once surrendering his reason, has no remaining guard against absurdities
the most monstrous, and like a ship without rudder, is the sport of every wind.
-Thomas Jefferson to James Smith, 1822
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