#!/usr/bin/perl -w

###############################################################################
###############################################################################
##
##  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
##  Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
##  
##  This copyrighted material is made available to anyone wishing to use,
##  modify, copy, or redistribute it subject to the terms and conditions
##  of the GNU General Public License v.2.
##
###############################################################################
###############################################################################


use warnings;
use Getopt::Long;
use POSIX qw(uname);
use Cwd 'abs_path';
use File::Basename;

print "\nConfiguring Makefiles for your system...\n";

# Set a bunch of variables

my $ret = 0;

# this should be only the major version without the extra version 
# eg. only the first 3 digits
my $required_kernelversion = '2.6.24';

my %options = (
	help => \$help,
	cc => \$cc,
	debug => \$debug,
	cflags => \$cflags,
	extracflags => \$extracflags,
	ldflags => \$ldflags,
	extraldflags => \$extraldflags,
	objdir => \$objdir,
	kernel_build => \$kernel_build,
	kernel_src => \$kernel_src,
	module_dir => \$module_dir,
	gfskincdir => \$gfskincdir,
	gnbdkincdir => \$gnbdkincdir,
        incdir => \$incdir,
	libdir => \$libdir,
        ccsincdir => \$ccsincdir,
	ccslibdir => \$ccslibdir,
	cmanincdir => \$cmanincdir,
	cmanlibdir => \$cmanlibdir,
	dlmincdir => \$dlmincdir,
	dlmlibdir => \$dlmlibdir,
	volidincdir => \$volidincdir,
	volidlibdir => \$volidlibdir,
	ncursesincdir => \$ncursesincdir,
	ncurseslibdir => \$ncurseslibdir,
	slangincdir => \$slangincdir,
	slanglibdir => \$slanglibdir,
	readlineincdir => \$readlineincdir,
	readlinelibdir => \$readlinelibdir,
	openaisincdir => \$openaisincdir,
	openaislibdir => \$openaislibdir,
	aisexecbin => \$aisexecbin,
	virtincdir => \$virtincdir,
	virtlibdir => \$virtlibdir,
	nssincdir => \$nssincdir,
	nsslibdir => \$nsslibdir,
	nsprincdir => \$nsprincdir,
	nsprlibdir => \$nsprlibdir,
	xenincdir => \$xenincdir,
	xenlibdir => \$xenlibdir,
	libexecdir => \$libexecdir,
	mandir  => \$mandir,
	prefix => \$prefix,
	sbindir => \$sbindir,
	sharedir => \$sharedir,
	confdir => \$confdir,
	conffile => \$conffile,
	fence_agents => \$fence_agents,
	enable_xen => \$enable_xen,
	release_major => \$release_major,
	release_minor => \$release_minor,
	without_ccs => \$without_ccs,
	without_cman => \$without_cman,
	without_dlm => \$without_dlm,
	without_group => \$without_group,
	without_fence => \$without_fence,
	without_gfs => \$without_gfs,
	without_gfs2 => \$without_gfs2,
	without_gnbd => \$without_gnbd,
	without_rgmanager => \$without_rgmanager,
	disable_kernel_check => \$disable_kernel_check,
);

my $err = &GetOptions (\%options,
		    'help',
		    'cc=s',
		    'debug',
		    'cflags=s',
		    'extracflags=s',
		    'ldflags=s',
		    'extraldflags=s',
		    'objdir=s',
		    'kernel_build=s',
		    'kernel_src=s',
		    'module_dir=s',
		    'gfskincdir=s',
		    'gnbdkincdir=s',
		    'incdir=s',
		    'libdir=s',
		    'ccsincdir=s',
		    'ccslibdir=s',
		    'cmanincdir=s',
		    'cmanlibdir=s',
		    'dlmincdir=s',
		    'dlmlibdir=s',
		    'volidincdir=s',
		    'volidlibdir=s',
		    'ncursesincdir=s',
		    'ncurseslibdir=s',
		    'slangincdir=s',
		    'slanglibdir=s',
		    'readlineincdir=s',
		    'readlinelibdir=s',
		    'openaisincdir=s',
		    'openaislibdir=s',
		    'aisexecbin=s',
		    'virtincdir=s',
		    'virtlibdir=s',
		    'nssincdir=s',
		    'nsslibdir=s',
		    'nsprincdir=s',
		    'nsprlibdir=s',
		    'xenincdir=s',
		    'xenlibdir=s',
		    'libexecdir=s',
		    'mandir=s',
		    'prefix=s',
		    'sbindir=s',
		    'sharedir=s',
		    'confdir=s',
		    'conffile=s',
		    'release_major=s',
		    'release_minor=s',
		    'fence_agents=s',
		    'enable_xen',
		    'without_ccs',
		    'without_cman',
		    'without_dlm',
		    'without_group',
		    'without_fence',
		    'without_gfs',
		    'without_gfs2',
		    'without_gnbd',
		    'without_rgmanager',
		    'disable_kernel_check');

if(!$err) {
  $ret = 1;
  print "*** ERROR: Invalid option detected ***\n";
}

# Check for the --help flag
if ($help || !$err) {
  $_ = $0;
  s/.*\.\/(.*)/$1/;
  print "Usage: $_ [flags]\n";
  print "--help\t\tPrints this usage information\n\n";
  print "install flags:\n";
  print "--prefix=\tthe base directory to install into.  (Default: /usr)\n";
  print "--sbindir=\tthe base directory for system binaries.  (Default: {prefix}/sbin)\n";
  print "--libdir=\tthe base directory for libraries.  (Default: {prefix}/lib)\n";
  print "--libexecdir=\tthe base directory for executable components.  (Default: {prefix}/libexec)\n";
  print "--sharedir=\tthe base directory for misc cluster files.  (Default: {prefix}/share/cluster)\n";
  print "--confdir=\tthe cluster config directory.  (Default: /etc/cluster)\n";
  print "--conffile=\tthe cluster config file.  (Default: cluster.conf)\n";
  print "--mandir=\tthe base directory for man pages.  (Default: {prefix}/share/man)\n";
  print "--module_dir=\tthe base directory for kernel modules.  (Default:  /lib/modules/`uname -r`/kernel\n";
  print "\nbuild flags:\n";
  print "--cc=\t\tcompiler to use.  (Default: gcc)\n";
  print "--debug\t\tEnable debugging build. Changes default CFLAGS to -Wall -O0 -DDEBUG -g.\n";
  print "--cflags=\toverride default CFLAGS settings.  (Default: -Wall -O2 -g)\n";
  print "--extracflags=\tadd extra compiler options to default CFLAGS setting.  (Default: none)\n";
  print "--ldflags=\toverride default LDFLAGS settings.  (Default: none)\n";
  print "--extraldflags=\tadd extra linking options to default LDFLAGS settings.  (Default: none)\n";
  print "--objdir=\tspecify directory where to store object files.  (Defaults: current build dir)\n";
  print "--kernel_build=\tthe directory containing the kernel object tree you wish to\n\t\tcompile against. (Default: /lib/modules/`uname -r`/build\n\t\tif available or /usr/src/linux as fallback)\n";
  print "--kernel_src=\tthe directory containing the kernel source you wish to\n\t\tcompile against.  (Default: /lib/modules/`uname -r`/source\n\t\tif available or \$kernel_build as fallback)\n";
  print "--incdir=\tthe base directory for include files.  (Default: {prefix}/include)\n";
  print "--ccsincdir=\tthe base directory for ccs include files.  (Default: ./ccs/lib)\n";
  print "--ccslibdir=\tthe base directory for ccs libraries.  (Default: ./ccs/lib)\n";
  print "--cmanincdir=\tthe base directory for cman include files.  (Default: ./cman/lib)\n";
  print "--cmanlibdir=\tthe base directory for cman libraries.  (Default: ./cman/lib)\n";
  print "--dlmincdir=\tthe base directory for dlm include files.  (Default: ./dlm/lib)\n";
  print "--dlmlibdir=\tthe base directory for dlm libraries.  (Default: ./dlm/lib)\n";
  print "--volidincdir=\tthe base directory for volume_id include files.  (Default: {incdir})\n";
  print "--volidlibdir=\tthe base directory for volume_id libraries.  (Default: {libdir})\n";
  print "--ncursesincdir=\tthe base directory for ncurses include files.  (Default: {incdir})\n";
  print "--ncurseslibdir=\tthe base directory for ncurses libraries.  (Default: {libdir})\n";
  print "--slangincdir=\tthe base directory for S-Lang include files.  (Default: {incdir})\n";
  print "--slanglibdir=\tthe base directory for S-Lang libraries.  (Default: {libdir})\n";
  print "--readlineincdir=\tthe base directory for readline include files.  (Default: {incdir})\n";
  print "--readlinelibdir=\tthe base directory for readline libraries.  (Default: {libdir})\n";
  print "--openaisincdir=\tthe base directory for openais include files.  (Default: {incdir})\n";
  print "--openaislibdir=\tthe base directory for openais libraries.  (Default: {libdir}/openais)\n";
  print "--aisexecbin=\tlocation of aisexec executable file.  (Default: /usr/sbin/aisexec)\n";
  print "--nssincdir=\tthe base directory for libnss include files.  (Default: {incdir}/nss3)\n";
  print "--nsslibdir=\tthe base directory for libnss libraries.  (Default: {libdir})\n";
  print "--nsprincdir=\tthe base directory for libnspr include files.  (Default: {incdir}/nspr4)\n";
  print "--nsprlibdir=\tthe base directory for libnspr libraries.  (Default: {libdir})\n";
  print "--virtincdir=\tthe base directory for libvirt include files.  (Default: {incdir}/libvirt)\n";
  print "--virtlibdir=\tthe base directory for libvirt libraries.  (Default: {libdir})\n";
  print "--xenincdir=\tthe base directory for xen include files.  (Default: {incdir}/xen)\n";
  print "--xenlibdir=\tthe base directory for xen libraries.  (Default: {libdir})\n";
  print "--fence_agents=\tlist of fence agents to configure.  (Default: all)\n";
  print "\t\tUse --fence_agents=help for a list\n";
  print "--enable_xen\tEnable building of Xen-specific pieces\n";
  print "--without_ccs\tDisable ccs building  (Default: enabled)\n";
  print "--without_cman\tDisable cman building  (Default: enabled)\n";
  print "--without_dlm\tDisable dlm building  (Default: enabled)\n";
  print "--without_group\tDisable group building  (Default: enabled)\n";
  print "--without_fence\tDisable fence building  (Default: enabled)\n";
  print "--without_gfs\tDisable gfs building  (Default: enabled)\n";
  print "--without_gfs2\tDisable gfs2 building  (Default: enabled)\n";
  print "--without_gnbd\tDisable gnbd building  (Default: enabled)\n";
  print "--without_rgmanager\tDisable rgmanager building  (Default: enabled)\n";
  print "--disable_kernel_check\tDisable kernel version check (default: enabled)\n";
  exit $ret;
}

sub kernel_version {
  my $autoconf_path = shift;
  my $required_version = shift;
  my $build_version = 0;
  my $build_patchlevel = 0;
  my $build_sublevel = 0;

  print "\nChecking kernel:\n";

  # add autoconf to the path
  $autoconf_path .= '/include/linux/autoconf.h';
  my @version = split /\./, $required_version;
  my $current_version = 0;
  if ( -f $autoconf_path ) {
    # open the autoconf.h to feth VERSION, PATCHLEVEL and SUBLEVEL, if needed I can add EXTRAVERSION too
    open AUTOCONF, '<', $autoconf_path;
    while (<AUTOCONF>) {
      if ($_ =~ /CONFIG_KERNELVERSION/) {
        $current_version = $_;
        # we don't need to check any thing else in this file so we are stopping the read
        last;
      }
    }
    close AUTOCONF;
    # leaving only the numbers from the lines
    # this is faster then split and doesn't alocate useless arrays
    $current_version =~ s/.*"(.*)"\n/$1/;
    # parse the kernel version into the variables
    if ($current_version =~ /\-/) {
        my @line = split /\-/, $current_version;
        my @ver  = split /\./, $line[0];
        $build_version = $ver[0];
        $build_patchlevel = $ver[1];
        $build_sublevel = $ver[2];
    } else {
        my @kernel = split /\./, $current_version;
        $build_version = $kernel[0];
        $build_patchlevel = $kernel[1];
        $build_sublevel = $kernel[2];
    }
    # checking VERSION, PATCHLEVEL and SUBLEVEL for the supplied kernel
    # if needed I can add also EXTRAVERSION to the check
    if ($build_version >= $version[0] &&
        $build_patchlevel >= $version[1] &&
        $build_sublevel >= $version[2]) {
      print " Current kernel version appears to be OK\n";
      return 1;
    } else {
      print " Current kernel version: ",$current_version,"\n Minimum kernel version: ",$required_version,"\n";
      print " FAILED!\n";
      return 0;
    }
  } else {
    print " Unable to find ($autoconf_path)!\n";
    print " Make sure that:\n - the above path is correct\n";
    print " - your kernel is properly configured and prepared.\n";
    print " - kernel_build and kernel_src options to configure are set properly.\n";
    return 0;
  }
}

sub symlinks {
  my $dir = shift;
  my $pattern = shift;
  @args = "find $dir -type f -name $pattern";
  open (IFILE, "@args |");
  while (<IFILE>) {
    chomp;
    s|\./||g;
    s|.*make\/defines.mk||g;
    $dirname = dirname($_);
    $filename = basename($_);
    system("mkdir -p $objdir/$dirname");
    symlink("${cdir}/$_","$objdir/$dirname/$filename");
  }
  close IFILE;
  return 0;
}

$pwd = `pwd`;
chomp($pwd);

if (!$cc) {
  $cc="gcc";
}
if (!$cflags) {
  $cflags="-Wall -Wformat=2";
  if (!$debug) {
    $cflags="${cflags} -O2";
  } else {
    $cflags="${cflags} -O0 -DDEBUG";
  }
  $cflags="${cflags} -g";
}
if ($extracflags) {
  $cflags="${cflags} ${extracflags}";
}
if (!$ldflags) {
  $ldflags="";
}
if ($extraldflags) {
  $ldflags="${ldflags} ${extraldflags}";
}
if (!$prefix) {
  $prefix="/usr";
}

print "\nChecking tree: ";
if (!$objdir) {
  $objdir="${pwd}";
}
$objdir = abs_path( $objdir );
$cdir = dirname ( abs_path( $0 ) );
unless ("$cdir" eq "$objdir") {
  chdir "$cdir";
}

if (! -d "$objdir/make") {
  print "setting up $objdir\n";
  mkdir "$objdir";
  symlinks(".","Makefile");
  symlinks(".","*.mk");
  symlinks("gnbd-kernel","*.c");
  symlinks("gnbd-kernel","*.h");
  symlinks("gfs-kernel","*.c");
  symlinks("gfs-kernel","*.h");
} else {
  print "nothing to do\n";
}

my @un = POSIX::uname();
if (!$kernel_build) {
  if (-d "/lib/modules/$un[2]/build") {
    $kernel_build="/lib/modules/$un[2]/build";
  } else {
    $kernel_build="/usr/src/linux";
  }
}
if (!$kernel_src) {
  if (-d "/lib/modules/$un[2]/source") {
    $kernel_src="/lib/modules/$un[2]/source";
  } else {
    $kernel_src=$kernel_build;
  }
}
if (not $disable_kernel_check and !kernel_version($kernel_build,$required_kernelversion)) {
  exit 1;
}
if (!$module_dir) {
  $module_dir="/lib/modules/$un[2]/kernel";
}
if (!$gfskincdir) {
  $gfskincdir="${cdir}/gfs-kernel/src/gfs";
}
if (!$gnbdkincdir) {
  $gnbdkincdir="${cdir}/gnbd-kernel/src";
}
if (!$incdir) {
  $incdir="${prefix}/include";
}
if (!$libdir) {
  $libdir="${prefix}/lib";
}
if (!$ccsincdir) {
  $ccsincdir="${cdir}/ccs/lib";
}
if (!$ccslibdir) {
  $ccslibdir="${objdir}/ccs/lib";
}
if (!$cmanincdir) {
  $cmanincdir="${cdir}/cman/lib";
}
if (!$cmanlibdir) {
  $cmanlibdir="${objdir}/cman/lib";
}
if (!$dlmincdir) {
  $dlmincdir="${cdir}/dlm/lib";
}
if (!$dlmlibdir) {
  $dlmlibdir="${objdir}/dlm/lib";
}
if (!$volidincdir) {
  $volidincdir="${incdir}";
}
if (!$volidlibdir) {
  $volidlibdir="${libdir}";
}
if (!$readlineincdir) {
  $readlineincdir="${incdir}";
}
if (!$readlinelibdir) {
  $readlinelibdir="${libdir}";
}
if (!$ncursesincdir) {
  $ncursesincdir="${incdir}";
}
if (!$ncurseslibdir) {
  $ncurseslibdir="${libdir}";
}
if (!$slangincdir) {
  $slangincdir="${incdir}";
  if (! -f "$slangincdir/slang.h") {
    $slangincdir="${incdir}/slang";
  }
}
if (!$slanglibdir) {
  $slanglibdir="${libdir}";
}
if (!$openaisincdir) {
  $openaisincdir="${incdir}";
}
if (!$openaislibdir) {
  $openaislibdir="${libdir}/openais";
}
if (!$aisexecbin) {
  $aisexecbin="/usr/sbin/aisexec";
}
if (!$nssincdir) {
  $nssincdir="${incdir}/nss3";
}
if (!$nsslibdir) {
  $nsslibdir="${libdir}";
}
if (!$nsprincdir) {
  $nsprincdir="${incdir}/nspr4";
}
if (!$nsprlibdir) {
  $nsprlibdir="${libdir}";
}
if (!$virtincdir) {
  $virtincdir="${incdir}/libvirt";
}
if (!$virtlibdir) {
  $virtlibdir="${libdir}";
}
if (!$xenincdir) {
  $xenincdir="${incdir}/xen";
}
if (!$xenlibdir) {
  $xenlibdir="${libdir}";
}
if (!$libexecdir) {
  $libexecdir="${prefix}/libexec";
}
if (!$mandir) {
  $mandir="${prefix}/share/man";
}
if (!$sbindir) {
  $sbindir="${prefix}/sbin";
}
if (!$sharedir) {
  $sharedir="${prefix}/share/cluster";
}
if (!$confdir) {
  $confdir="/etc/cluster";
}
if (!$conffile) {
  $conffile="cluster.conf";
}
if (!$fence_agents) {
  $fence_agents="all";
}
if (!$enable_xen) {
  $enable_xen="";
}
if (!$without_ccs) {
  $without_ccs="";
}
if (!$without_cman) {
  $without_cman="";
}
if (!$without_dlm) {
  $without_dlm="";
}
if (!$without_group) {
  $without_group="";
}
if (!$without_fence) {
  $without_fence="";
}
if (!$without_gfs) {
  $without_gfs="";
}
if (!$without_gfs2) {
  $without_gfs2="";
}
if (!$without_gnbd) {
  $without_gnbd="";
}       
if (!$without_rgmanager) {
  $without_rgmanager="";
}
if (!$disable_kernel_check) {
  $disable_kernel_check=0;
}
if (defined($release_major) && not length $release_major) {
  $release_major="";
}
if (defined($release_minor) && not length $release_minor) {
  $release_minor="";
}

@args = "find fence/agents -mindepth 2 -maxdepth 2 -name Makefile -printf '%h'";
open (IFILE, "@args |");
while (<IFILE>) {
  chomp;
  s|fence\/agents\/| |g;
  $all_fence = $_;
}
close IFILE;

if ($fence_agents eq "help") {
  print "Available fence agents:\n$all_fence\n";
  exit 0;
}

if ((!$fence_agents) || ($fence_agents eq "all")) {
  print "\nThe following fence agents will be build on this system:\n$all_fence\n";
  print "\nNOTE: xvm will build only if --enable_xen has been specified\n\n";
  $fence_agents = $all_fence
}

open IFILE, "<make/defines.mk.input" or die "Can't redirect stdin";
open OFILE, ">${objdir}/make/defines.mk" or die "Can't redirect stdout";

print OFILE "# This file was generated by configure from defines.mk.input\n";

while (<IFILE>) {
  chomp;
  $_ =~ s/\@SRCDIR\@/$cdir/;
  $_ =~ s/\@CC\@/$cc/;
  $_ =~ s/\@CFLAGS\@/$cflags/;
  $_ =~ s/\@LDFLAGS\@/$ldflags/;
  $_ =~ s/\@OBJDIR\@/$objdir/;
  $_ =~ s/\@KERNEL_BUILD\@/$kernel_build/;
  $_ =~ s/\@KERNEL_SRC\@/$kernel_src/;
  $_ =~ s/\@MODULE_DIR\@/$module_dir/;
  $_ =~ s/\@GFSKINCDIR\@/$gfskincdir/;
  $_ =~ s/\@GNBDKINCDIR\@/$gnbdkincdir/;
  $_ =~ s/\@INCDIR\@/$incdir/;
  $_ =~ s/\@LIBDIR\@/$libdir/;
  $_ =~ s/\@CCSINCDIR\@/$ccsincdir/;
  $_ =~ s/\@CCSLIBDIR\@/$ccslibdir/;
  $_ =~ s/\@CMANINCDIR\@/$cmanincdir/;
  $_ =~ s/\@CMANLIBDIR\@/$cmanlibdir/;
  $_ =~ s/\@DLMINCDIR\@/$dlmincdir/;
  $_ =~ s/\@DLMLIBDIR\@/$dlmlibdir/;
  $_ =~ s/\@VOLIDINCDIR\@/$volidincdir/;
  $_ =~ s/\@VOLIDLIBDIR\@/$volidlibdir/;
  $_ =~ s/\@READLINEINCDIR\@/$readlineincdir/;
  $_ =~ s/\@READLINELIBDIR\@/$readlinelibdir/;
  $_ =~ s/\@NCURSESINCDIR\@/$ncursesincdir/;
  $_ =~ s/\@NCURSESLIBDIR\@/$ncurseslibdir/;
  $_ =~ s/\@SLANGINCDIR\@/$slangincdir/;
  $_ =~ s/\@SLANGLIBDIR\@/$slanglibdir/;
  $_ =~ s/\@OPENAISINCDIR\@/$openaisincdir/;
  $_ =~ s/\@OPENAISLIBDIR\@/$openaislibdir/;
  $_ =~ s/\@AISEXECBIN\@/$aisexecbin/;
  $_ =~ s/\@XENINCDIR\@/$xenincdir/;
  $_ =~ s/\@XENLIBDIR\@/$xenlibdir/;
  $_ =~ s/\@NSSINCDIR\@/$nssincdir/;
  $_ =~ s/\@NSSLIBDIR\@/$nsslibdir/;
  $_ =~ s/\@NSPRINCDIR\@/$nsprincdir/;
  $_ =~ s/\@NSPRLIBDIR\@/$nsprlibdir/;
  $_ =~ s/\@VIRTINCDIR\@/$virtincdir/;
  $_ =~ s/\@VIRTLIBDIR\@/$virtlibdir/;
  $_ =~ s/\@LIBEXECDIR\@/$libexecdir/;
  $_ =~ s/\@MANDIR\@/$mandir/;
  $_ =~ s/\@SBINDIR\@/$sbindir/;
  $_ =~ s/\@SHAREDIR\@/$sharedir/;
  $_ =~ s/\@CONFDIR\@/$confdir/;
  $_ =~ s/\@CONFFILE\@/$conffile/;
  $_ =~ s/\@FENCE_AGENTS\@/$fence_agents/;
  $_ =~ s/\@ENABLE_XEN\@/$enable_xen/;
  $_ =~ s/\@DISABLE_CCS\@/$without_ccs/;
  $_ =~ s/\@DISABLE_CMAN\@/$without_cman/;
  $_ =~ s/\@DISABLE_DLM\@/$without_dlm/;
  $_ =~ s/\@DISABLE_GROUP\@/$without_group/;
  $_ =~ s/\@DISABLE_FENCE\@/$without_fence/;
  $_ =~ s/\@DISABLE_GFS\@/$without_gfs/;
  $_ =~ s/\@DISABLE_GFS2\@/$without_gfs2/;
  $_ =~ s/\@DISABLE_GNBD\@/$without_gnbd/;
  $_ =~ s/\@DISABLE_RGMANAGER\@/$without_rgmanager/;

  print OFILE "$_\n";
}

close IFILE;

if ((not defined($release_major)) || (not defined($release_minor))) {
  $release_major = DEVEL;
  $release_minor = `date +%s`;
  chomp $release_minor;
}

print OFILE "RELEASE_MAJOR = $release_major\n";
print OFILE "RELEASE_MINOR = $release_minor\n";
print OFILE "RELEASE_VERSION = $release_major.$release_minor\n";
print OFILE "CFLAGS += -DRELEASE_VERSION=\\\"$release_major.$release_minor\\\"\n";
close OFILE;

print "Completed Makefile configuration\n\n";
