curl tool: make setup.h first header included in tool_setup.h again

#define CURL_NO_OLDIES

#include <curl/curl.h> /* external interface */

/*

 * setup.h may define preprocessor macros such as _FILE_OFFSET_BITS and

 * _LARGE_FILES in order to support files larger than 2 GB. On platforms

 * where this happens it is mandatory that these macros are defined before

 * any system header file is included, otherwise file handling function

 * prototypes will be misdeclared and curl tool may not build properly;

 * therefore we must include setup.h before curl.h when building curl.

 */

#include "setup.h" /* from the lib directory */

/*

 * Undefine macros intended for libcurl internal use only.

 */

#undef CURL_HIDDEN_SYMBOLS

/*

 * curl tool certainly uses libcurl's external interface.

 */

#include <curl/curl.h> /* external interface */

/*

 * Platform specific stuff.

 */

#if defined(macintosh) && defined(__MRC__)

#  define main(x,y) curl_main(x,y)

#endif