xspice/cmpp, compatibility with MS Visual Studio

src/xspice/cmpp/cmpp.h

@@ -45,6 +45,14 @@ NON-STANDARD FEATURES
 #define MODPATH_FILENAME "modpath.lst"
 #define UDNPATH_FILENAME "udnpath.lst"
 
+#ifdef _MSC_VER
+#include <io.h>
+#define strdup _strdup
+#define unlink _unlink
+#define isatty _isatty
+#define fileno _fileno
+#endif
+
 /* *********************************************************************** */
 
 typedef enum {

src/xspice/cmpp/pp_mod.c

@@ -57,7 +57,9 @@ NON-STANDARD FEATURES
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifndef _MSC_VER
 #include <unistd.h>
+#endif
 #include  "mod_yacc_y.h"
 
 extern int mod_yyparse(void);