curl tool: use configuration files from lib directory

Configuration files such as curl_config.h and all config-*.h no longer exist
nor are generated/copied into 'src' directory, now these only exist in 'lib'
directory from where curl tool sources uses them.

Additionally old src/setup.h has been refactored into src/tool_setup.h which
now pulls lib/setup.h

The possibility of a makefile needing an include path adjustment exists.

src/tool_setup.h

@@ -0,0 +1,56 @@
+#ifndef HEADER_CURL_TOOL_SETUP_H
+#define HEADER_CURL_TOOL_SETUP_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#define CURL_NO_OLDIES
+
+#include "setup.h" /* from the lib directory */
+
+#if defined(macintosh) && defined(__MRC__)
+#  define main(x,y) curl_main(x,y)
+#endif
+
+#ifdef TPF
+#  undef select
+   /* change which select is used for the curl command line tool */
+#  define select(a,b,c,d,e) tpf_select_bsd(a,b,c,d,e)
+   /* and turn off the progress meter */
+#  define CONF_DEFAULT (0|CONF_NOPROGRESS)
+#endif
+
+#ifndef OS
+#  define OS "unknown"
+#endif
+
+#ifndef UNPRINTABLE_CHAR
+   /* define what to use for unprintable characters */
+#  define UNPRINTABLE_CHAR '.'
+#endif
+
+#ifndef HAVE_STRDUP
+#  include "strdup.h"
+#  define strdup(ptr) curlx_strdup(ptr)
+#endif
+
+#endif /* HEADER_CURL_TOOL_SETUP_H */
+