#!/usr/bin/perl

#======================================================================

#                    A N T S . P L 

#                    doc: Fri Jun 19 14:01:06 1998

#                    dlm: Tue Nov 27 12:57:36 2018

#                    (c) 1998 A.M. Thurnherr

#                    uE-Info: 27 60 NIL 0 0 72 2 2 4 NIL ofnI

#======================================================================

# HISTORY:

#  Jun 19, 1998: - apparently created

#  Jul  3, 2006: - added support for ANTS_PERL

#  Jul  5, 2006: - removed `basename`

#  Jul 19, 2006: - added error if exec($ANTS_PERL) fails

#  Sep 24, 2012: - added support for $ANTSLIB

#  Oct 29, 2014: - added $antsLibVersion with compile-time version check (V6.0)

#  May 17, 2015: - updated to V6.1

#  Oct 12, 2015: - updated to V6.2 (for LADCP_w 1.0)

#  Mar  8, 2016: - updated to V6.3 (for LADCP_w 1.2beta)

#  Mar 16, 2016: - updated to V6.4 (for LADCP_w 1.2beta5)

#  Mar 17, 2016: - updated to V6.5

#  Mar 29, 2016: - updated to V6.6

#  Aug  5, 2016: - updated to V6.7

#  Mar 12, 2017: - updated to V6.8 (for LADCP_w 1.3 release)

#  Nov 20, 2017: - updated to V6.9 (for DT KVH software)

#  Dec  8, 2017: - updated to V7.0 (to avoid absolute-path symlink)

#  Nov 27, 2018: - updaetd to V7.1 (for LADCP_w 1.4 release)

exec($ENV{ANTS_PERL},$0,@ARGV),die("$ENV{ANTS_PERL}: $!")

    if (defined($ENV{ANTS_PERL}) && $^X ne $ENV{ANTS_PERL});

$antsLibVersion = 7.1;

die(sprintf("$0: obsolete library V%.1f; V%.1f required\n",

	$antsLibVersion,$antsMinLibVersion))

		if (!defined($antsMinLibVersion) || $antsMinLibVersion>$antsLibVersion);

if (defined($ANTSLIB)) {							# new style (V5)

	require "$ANTSLIB/antsusage.pl";

	require "$ANTSLIB/antsio.pl";

	require "$ANTSLIB/antsutils.pl";

	require "$ANTSLIB/antsexprs.pl";

	$ANTS = $ANTSLIB;								# backward compatibility

} elsif (defined($ANTS)) {							# old style

	require "$ANTS/antsusage.pl";

	require "$ANTS/antsio.pl";

	require "$ANTS/antsutils.pl";

	require "$ANTS/antsexprs.pl";

} else {

	die("neither \$ANTS nor \$ANTSLIB defined\n");

}

1;