Synch recent 3.4.2 changes to main trunk

This is merely a synchronization of recent changes for the
Macintosh Carbon port, which were committed to the 3.4.2
branch, to the main trunk.

sys/mac/macfile.c

@@ -8,12 +8,16 @@
 
 #include "hack.h"
 #include "macwin.h"
+
+#ifndef __MACH__
 #include <files.h>
 #include <errors.h>
 #include <resources.h>
 #include <memory.h>
 #include <TextUtils.h>
 #include <ToolUtils.h>
+#endif
+
 #include "dlb.h"
 
 /*
@@ -363,6 +367,18 @@ macseek (int fd, long where, short whence)
 }
 
 
+int
+macunlink(const char *name)
+{
+	Str255 pname;
+
+
+	C2P(name, pname);
+	return (HDelete(theDirs.dataRefNum, theDirs.dataDirID, pname) == noErr ? 0 : -1);
+}
+
+
+
 /* ---------------------------------------------------------------------- */
 
 boolean rsrc_dlb_init(void) {