From cea7ca7af25da1c8ffa37775af0f5cee90cce2dd Mon Sep 17 00:00:00 2001
From: "D. Richard Hipp" <drh@hwaci.com>
Date: Wed, 25 Oct 2017 16:14:12 +0000
Subject: [PATCH] Do not reference the ioctl() system call in the unix backend
 unless it is actually needed by the Batch Atomic Write extension.  This
 should allow the build to work on VxWorks.

---
 src/os_unix.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/os_unix.c b/src/os_unix.c
index 4445104dd6..c33d21fd9b 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -513,7 +513,11 @@ static struct unix_syscall {
 #endif
 #define osLstat      ((int(*)(const char*,struct stat*))aSyscall[27].pCurrent)
 
+#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
   { "ioctl",         (sqlite3_syscall_ptr)ioctl,          0 },
+#else
+  { "ioctl",         (sqlite3_syscall_ptr)0,              0 },
+#endif
 #define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)
 
 }; /* End of the overrideable system calls */
-- 
2.11.4.GIT