Add missing includes for Windows

c/os_windows.c

@@ -1,4 +1,35 @@
-#include <windows.h>
+#include <sys/types.h>
+
+#include <sys/stat.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <math.h>
+#include <setjmp.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "dtypes.h"
+#include "utils.h"
+#include "utf8.h"
+#include "ios.h"
+#include "socket.h"
+#include "timefuncs.h"
+#include "hashing.h"
+#include "htable.h"
+#include "htableh_inc.h"
+#include "bitvector.h"
+#include "os.h"
+#include "random.h"
+#include "llt.h"
+
+#include "flisp.h"
 
 #include "os.h"
 

c/ptrhash.c

@@ -3,6 +3,8 @@
   optimized for storing info about particular values
 */
 
+#include <sys/types.h>
+
 #include <assert.h>
 #include <limits.h>
 #include <stdint.h>