#!/usr/bin/env perl

#
#  @todo Rewrite this in sh
#
#  This perl script invokes autoreconf after setting ACLOCAL and AUTOMAKE to reasonably modern values.
#  (>= aclocal-1.6, automake-1.6).
#
#  It is careful to avoid mixing versions of the two tools.
#
#  If you don't have perl, find sufficiently recent and matching versions of aclocal and automake, and invoke
#  something like this (under bash):
#
#  ACLOCAL=/usr/bin/aclocal-1.8 AUTOMAKE=/usr/bin/automake-1.8 autoreconf
#
#  Stasis used to ship with the following two scripts; the first uses the system default, the second uses automake 1.8:
#
qq(

#!/bin/sh
rm -f config.cache
rm -f acconfig.h
aclocal -I m4
autoconf
autoheader
libtoolize --automake
automake  -a
exit

);
#
#
qq(

#!/bin/sh
rm -f config.cache
rm -f acconfig.h
aclocal-1.8 -I m4
autoconf
autoheader
libtoolize --automake
automake-1.8  -a
exit

);
#

my $aclocal_base = `which aclocal` || die `aclocal not found!`;
my $automake_base = `which automake` || die `aclocal not found!`;

chomp $aclocal_base;
chomp $automake_base;

my @good_versions = qw(1.9 1.8 1.7 1.6);

foreach my $i (@ARGV) { 
    if ($i eq "-h" || $i eq "--help") { 
	print 
qq(Usage: $0 [options]

This program is a thin wrapper on top of autoreconf.  It looks for an 
appropriate version of aclocal and automake, and then invokes autoreconf.  

It takes the same options as autoreconf, whose usage string is repeated below:

);
    }
}

my $version;
foreach my $i (@good_versions) {
    if ((-x "$aclocal_base-$i") && (-x "$automake_base-$i")) { 
	$version = $i;
	break;
    }
}

if(! $version ) { 
    print 
qq(
*****************************************************************************************
No appropriate version of automake was found.  

Please install a version between 1.6 and 1.9, or add a directory containing automake-1.n 
and aclocal-1.n to your path.

Proceeding with system's default automake.  Expect trouble.
*****************************************************************************************


);
} else { 
   $ENV{ACLOCAL} = "$aclocal_base-$version";
   $ENV{AUTOMAKE} = "$automake_base-$version";
}
system ("autoreconf -i", @ARGV);