--- sqlite3.c.orig
+++ sqlite3.c
@@ -383,7 +383,7 @@ SQLITE_PRIVATE   void sqlite3Coverage(int);
 **
 ** See also ticket #2741.
 */
-#if !defined(_XOPEN_SOURCE) && !defined(__DARWIN__) && !defined(__APPLE__) && SQLITE_THREADSAFE
+#if !defined(_XOPEN_SOURCE) && !defined(__DARWIN__) && !defined(__APPLE__) && SQLITE_THREADSAFE && !defined(VXWORKS)
 #  define _XOPEN_SOURCE 500  /* Needed to enable pthread recursive mutexes */
 #endif
 
@@ -440,6 +440,13 @@ SQLITE_PRIVATE   void sqlite3Coverage(int);
 */
 #ifndef _SQLITE3_H_
 #define _SQLITE3_H_
+
+#ifdef VXWORKS
+# define SQLITE_HOMEGROWN_RECURSIVE_MUTEX
+# define NO_GETTOD
+# include <ioLib.h>
+#endif
+
 #include <stdarg.h>     /* Needed for the definition of va_list */
 
 /*
@@ -18792,7 +18799,11 @@ SQLITE_PRIVATE sqlite3_vfs *sqlite3OsDefaultVfs(void){
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <sys/time.h>
+#ifdef VXWORKS
+# include <sys/times.h>
+#else
+# include <sys/time.h>
+#endif
 #include <errno.h>
 #ifdef SQLITE_ENABLE_LOCKING_STYLE
 #include <sys/ioctl.h>
@@ -19728,7 +19739,11 @@ static int seekAndWrite(unixFile *id, i64 offset, const void *pBuf, int cnt){
   if( newOffset!=offset ){
     return -1;
   }
+# ifndef VXWORKS
   got = write(id->h, pBuf, cnt);
+# else
+  got = write(id->h, (char *)pBuf, cnt);
+# endif
 #endif
   TIMER_END;
   OSTRACE5("WRITE   %-3d %5d %7lld %d\n", id->h, got, offset, TIMER_ELAPSED);
@@ -21554,12 +21569,16 @@ static int unixRandomness(sqlite3_vfs *pVfs, int nBuf, char *zBuf){
 #if !defined(SQLITE_TEST)
   {
     int pid, fd;
-    fd = open("/dev/urandom", O_RDONLY);
+    fd = open("/dev/urandom", O_RDONLY, 0);
     if( fd<0 ){
       time_t t;
       time(&t);
       memcpy(zBuf, &t, sizeof(t));
+#ifndef VXWORKS
       pid = getpid();
+#else
+      pid = (int)taskIdCurrent();
+#endif
       memcpy(&zBuf[sizeof(t)], &pid, sizeof(pid));
     }else{
       read(fd, zBuf, nBuf);