provisionally added doxygen target in qmake build system

docs/qconfigure.pl

@@ -0,0 +1,43 @@
+#!/usr/bin/perl
+#
+# Copyright (C) 2013 VATSIM community / contributors
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/
+#
+# Script used by the qmake project file doxygen.pro to process the file
+# Doxyfile.cmake.in
+
+use strict;
+use warnings;
+
+die "not enough arguments\n" if @ARGV < 2;
+
+my ($infile, $outfile, @vars) = @ARGV;
+
+my %vars;
+for my $line (@vars)
+{
+	my ($var, $val) = split '=', $line;
+	$vars{$var} = $val;
+	
+	die "missing '=' in parameter\n" unless defined $val;
+}
+
+$infile  =~ s.\\./.g;
+$outfile =~ s.\\./.g;
+
+open my $in, '<', $infile or die "couldn't read from $infile\n";
+open my $out, '>', $outfile or die "couldn't write to $outfile\n";
+
+while (defined(my $line = <$in>))
+{
+	for my $var (keys %vars)
+	{
+		$line =~ s.\@$var\@.$vars{$var}.g;
+	}
+	print $out $line;
+}
+
+close $in;
+close $out;