updated mac specific include files

config-mac.h

@@ -36,4 +36,6 @@
 #define HAVE_RAND_STATUS	1
 #define HAVE_RAND_EGD		1
 
-#include <GUSIExtra.h>
+#define HAVE_FIONBIO        1
+
+#include "GUSIExtra.h"

src/config-mac.h

@@ -0,0 +1,6 @@
+#include "GUSICommandLine.h"
+
+#define main(x,y) curl_main(x,y)
+
+/* we provide our own strdup prototype */
+char *strdup(const char *s1);