diff -Naur a/poptconfig.c b/poptconfig.c
--- a/poptconfig.c	2009-05-20 16:18:07.000000000 +0300
+++ b/poptconfig.c	2017-01-21 03:10:17.116120500 +0300
@@ -141,17 +141,23 @@
 int poptSaneFile(const char * fn)
 {
     struct stat sb;
-    uid_t uid = getuid();
+#ifndef  _MSC_VER
+	uid_t uid = getuid();
+#endif // ! _MSC_VER
 
     if (stat(fn, &sb) == -1)
 	return 1;
+#ifndef  _MSC_VER
     if ((uid_t)sb.st_uid != uid)
 	return 0;
+#endif // ! _MSC_VER
     if (!S_ISREG(sb.st_mode))
 	return 0;
 /*@-bitwisesigned@*/
-    if (sb.st_mode & (S_IWGRP|S_IWOTH))
-	return 0;
+#ifndef  _MSC_VER
+	if (sb.st_mode & (S_IWGRP | S_IWOTH))
+	return 0;
+#endif // ! _MSC_VER
 /*@=bitwisesigned@*/
     return 1;
 }
diff -Naur a/popthelp.c b/popthelp.c
--- a/popthelp.c	2009-08-28 03:06:33.000000000 +0300
+++ b/popthelp.c	2017-01-21 02:59:26.665695800 +0300
@@ -10,7 +10,10 @@
 
 #include "system.h"
 
-#define        POPT_USE_TIOCGWINSZ
+#ifndef  _MSC_VER
+#define        POPT_USE_TIOCGWINSZ
+#endif
+
 #ifdef POPT_USE_TIOCGWINSZ
 #include <sys/ioctl.h>
 #endif
diff -Naur a/system.h b/system.h
--- a/system.h	2008-12-18 19:09:49.000000000 +0200
+++ b/system.h	2017-01-21 03:10:59.195367500 +0300
@@ -100,4 +100,13 @@
 #endif
 #define UNUSED(x) x __attribute__((__unused__))
 
+#if defined(_MSC_VER)
+#define X_OK 0
+
+#include <BaseTsd.h>
+typedef SSIZE_T ssize_t;
+
+#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+
 #include "popt.h"