Merging upstream version 1.1~rc2.

Signed-off-by: Daniel Baumann <daniel@debian.org>

rc.h

@@ -0,0 +1,27 @@
+/*  Zutils - Utilities dealing with compressed files
+    Copyright (C) 2009, 2010, 2011, 2012, 2013 Antonio Diaz Diaz.
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+class Arg_parser;
+
+void maybe_process_config_file( const Arg_parser & parser );
+
+void parse_compressor( const std::string & arg, const int format_index,
+                       const int eretval = 2 );
+
+const char * get_compressor_name( const int format_index );
+
+const std::vector< std::string > & get_compressor_args( const int format_index );