From 0fe21c90390f9931cfb5cd8f708e0894ee49d8a9 Mon Sep 17 00:00:00 2001
From: Drew Varner <drew.varner@ninefx.com>
Date: Sun, 9 Aug 2015 10:15:00 -0400
Subject: [PATCH] Add 17.4 support

Erlang 17.4 added a new driver entry, `emergency_close`. This
patch tests for it by driver versions and adds an initializer if
necessary. This patch also adds new Erlang versions to the Travis CI config
to test the new driver field.
---
 .travis.yml         | 2 ++
 c_src/sqlite3_drv.c | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index d597386..4b459ef 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 language: erlang
 script: "make test"
 otp_release:
+  - 18.0
+  - 17.4
   - 17.3
   - R16B03-1
   - R15B03
diff --git a/c_src/sqlite3_drv.c b/c_src/sqlite3_drv.c
index fa958b2..16f945d 100644
--- a/c_src/sqlite3_drv.c
+++ b/c_src/sqlite3_drv.c
@@ -209,7 +209,13 @@ static ErlDrvEntry sqlite3_driver_entry = {
   ERL_DRV_FLAG_USE_PORT_LOCKING, /* ERL_DRV_FLAGs */
   NULL /* handle2 */,
   NULL /* process_exit */,
+  #if ERL_DRV_EXTENDED_MAJOR_VERSION > 3 || \
+  (ERL_DRV_EXTENDED_MAJOR_VERSION == 3 && ERL_DRV_EXTENDED_MINOR_VERSION >= 2)
+  NULL /* stop_select */,
+  NULL /* emergency_close */
+  #else
   NULL /* stop_select */
+  #endif
 };
 
 DRIVER_INIT(sqlite3_driver) {