#!/usr/bin/perl -w
#
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# Copyright by  The HDF Group and
#               The Board of Trustees of the University of Illinois.
# All rights reserved.
#
# This file is part of H4H5TOOLS. The full H4H5TOOLS copyright notice,
# including terms governing use, modification, and redistribution, is
# contained in the COPYING file, which can be found at the root of the
# source code distribution tree. The copyright notice can also be found
# at https://www.hdfgroup.org/licenses.  If you do not have access to
# either file, you may request a copy from help@hdfgroup.org.
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
#

my $depend_file;
my $new_depend_file;
my $srcdir;
my $top_srcdir;
my $top_builddir;

while ($_ = shift @ARGV) {
    if (/^--srcdir=([^ \t\n]*)/) {
        $srcdir = $1;
        $srcdir =~ s/\./\\\./g;
    } elsif (/^--top_srcdir=([^ \t\n]*)/) {
        $top_srcdir = $1;
        $top_srcdir =~ s/\./\\\./g;
    } elsif (/^--top_builddir=([^ \t\n]*)/) {
        $top_builddir = $1;
        $top_builddir =~ s/\./\\\./g;
    } else {
        $depend_file = $_;
        $new_depend_file = "$_.new";
        last;
    }
}

open(DEPEND, "<$depend_file") || die "cannot open file $depend_file: $!\n";
open(NEW, ">$new_depend_file") || die "cannot open file $new_depend_file: $!\n";

while (<DEPEND>) {
    s/\.o/\.lo/g;
    s/ $srcdir/ \$\(srcdir\)/g;
    s/ $top_srcdir/ \$\(top_srcdir\)/g;
    s/ $top_builddir/ \$\(top_builddir\)/g;
    print NEW $_;
}

`mv $new_depend_file $depend_file`;
