-Removing some unneeded headers (WIN_NT) or explaining why are needed

src/dudley/ddl.cpp

@@ -49,7 +49,7 @@
 #endif
 
 #if defined(WIN_NT)
-#include <io.h>
+#include <io.h> // isatty
 #endif
 
 const TEXT* DDL_prompt;

src/dudley/exe.epp

@@ -46,7 +46,7 @@
 #endif
 
 #ifdef WIN_NT
-#include <io.h>
+#include <io.h> // unlink
 #endif
 
 #define C_NUMERIC_SCALE(desc)	((DTYPE_IS_TEXT(make_dtype((desc).dsc_dtype))) ? 0 : (desc).dsc_scale)

src/isql/isql.epp

@@ -68,6 +68,9 @@
 #include <signal.h>
 #endif
 
+#ifdef WIN_NT
+#include <io.h> // mktemp
+#endif
 
 #ifdef HAVE_EDITLINE_H
 // This is a local file included in our distribution - but not always

src/isql/isql.h

@@ -19,7 +19,7 @@
  *
  * All Rights Reserved.
  * Contributor(s): ______________________________________.
- * $Id: isql.h,v 1.15 2003-09-29 12:43:05 robocop Exp $
+ * $Id: isql.h,v 1.16 2003-11-16 11:43:20 brodsom Exp $
  * Revision 1.2  2000/11/18 16:49:24  fsg
  * Increased PRINT_BUFFER_LENGTH to 2048 to show larger plans
  * Fixed Bug #122563 in extract.e get_procedure_args
@@ -275,7 +275,6 @@ struct sqltypes {
 #endif
 
 #if (defined WIN_NT)
-#include <io.h>
 #define UNIX_LINE	1
 #define PC_FILE_SEEK
 #endif

src/journal/gjrn.cpp

@@ -42,10 +42,6 @@
 #include "../journal/serve_proto.h"
 #include "../jrd/gds_proto.h"
 
-#if defined(WIN_NT)
-#include <io.h>
-#endif
-
 bool sw_service_gjrn;
 FILE* msg_file;