Improved installation script diagnostics and environment detection.

Build completes successfully on 32-bit Linux when all prerequisites
have been installed by the installation script.

Signed-off-by: Damian Rouson <[email protected]>

Author: Damian Rouson

COPYRIGHT-BSD3

@@ -1,15 +1,13 @@
-The licence below is the BSD 3-Clause License also known as
-Modified BSD License
+ OpenCoarrays
 
-This license is
-* OSI (Open Source Initiative) approved:
-  http://opensource.org/licenses/bsd-license.php
-* FSF (Free Software Foundation) approved and compatible with the
-  GPL (GNU Public License):
-  http://www.gnu.org/licenses/license-list.html#ModifiedBSD
+ -- A Coarray Fortran application binary interface, application programmer
+    interface, and compiler wrapper.
+
+ OpenCoarrays is distributed under the OSI-approved BSD 3-clause License:
+ Copyright (c) 2015, Sourcery, Inc.
+ Copyright (c) 2015, Sourcery Institute
+ All rights reserved.
 
-The license text starts below this line.
--------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
 met: