From 3287998d1e9882658777a0e6be13b405a918f7d3 Mon Sep 17 00:00:00 2001
From: Andreas Hasenack <andreas.hasenack@canonical.com>
Date: Sat, 6 Apr 2019 13:21:09 +0100
Subject: [PATCH] configure: barometer: fix i2c lib usage for 4.0

Forwarded: https://github.com/collectd/collectd/issues/2646
Bug-Ubuntu: https://bugs.launchpad.net/bugs/1742691
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=886920
Last-Update: 2018-02-21


Gbp-Pq: Name i2c_detection.patch
---
 Makefile.am     | 2 +-
 configure.ac    | 2 +-
 src/barometer.c | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 2ef2442..5b48735 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -599,7 +599,7 @@ if BUILD_PLUGIN_BAROMETER
 pkglib_LTLIBRARIES += barometer.la
 barometer_la_SOURCES = src/barometer.c
 barometer_la_LDFLAGS = $(PLUGIN_LDFLAGS)
-barometer_la_LIBADD = -lm
+barometer_la_LIBADD = -lm -li2c
 endif
 
 if BUILD_PLUGIN_BATTERY
diff --git a/configure.ac b/configure.ac
index f39096e..9ddb1c7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1883,7 +1883,7 @@ if test "x$ac_system" = "xLinux"; then
     [with_libi2c="no (symbol i2c_smbus_read_i2c_block_data not found - have you installed libi2c-dev ?)"],
     [[
       #include <stdlib.h>
-      #include <linux/i2c-dev.h>
+      #include <i2c/smbus.h>
     ]]
   )
 else
diff --git a/src/barometer.c b/src/barometer.c
index f698005..e3d418d 100644
--- a/src/barometer.c
+++ b/src/barometer.c
@@ -27,6 +27,7 @@
 
 #include <fcntl.h>
 #include <linux/i2c-dev.h>
+#include <i2c/smbus.h>
 #include <math.h>
 #include <stdint.h>
 #include <sys/ioctl.h>
-- 
2.30.2