package/collectd: Fix build issue with SENSORS_API_VERSION >= 0x500

Current collectd version 5.7.1 fails to compile because there is a
check which breaks the compilation if lm_sensors API >= 0x500, but in
the mainline codebase this check was removed in commit:

  https://github.com/collectd/collectd/commit/069796bd76dd1ab0089a64f7c9c2a3c9f1475414

So add backported patch based on this commit.

Fixes:

  http://autobuild.buildroot.net/results/c3c84ca6e11b268ba5ada7e3dca18bca681ee43d/

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/collectd/0003-sensors-Removed-checks-for-upper-limit-of-SENSORS_AP.patch

@@ -0,0 +1,89 @@
+From 069796bd76dd1ab0089a64f7c9c2a3c9f1475414 Mon Sep 17 00:00:00 2001
+From: Pavel Rochnyack <pavel2000@ngs.ru>
+Date: Mon, 3 Dec 2018 18:34:14 +0700
+Subject: [PATCH] sensors: Removed checks for upper limit of
+ SENSORS_API_VERSION
+
+That makes no more sense after lm-sensors got new maintainers.
+
+Issue: #3006
+
+[Vadim Kochan: backported to support 5.7.1 version]
+Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
+---
+ src/sensors.c | 17 ++++++-----------
+ 1 file changed, 6 insertions(+), 11 deletions(-)
+
+diff --git a/src/sensors.c b/src/sensors.c
+index 8f1824d..409dc38 100644
+--- a/src/sensors.c
++++ b/src/sensors.c
+@@ -149,7 +149,7 @@ typedef struct featurelist {
+ static char *conffile = SENSORS_CONF_PATH;
+ /* #endif SENSORS_API_VERSION < 0x400 */
+ 
+-#elif (SENSORS_API_VERSION >= 0x400) && (SENSORS_API_VERSION < 0x500)
++#elif (SENSORS_API_VERSION >= 0x400)
+ typedef struct featurelist {
+   const sensors_chip_name *chip;
+   const sensors_feature *feature;
+@@ -159,11 +159,6 @@ typedef struct featurelist {
+ 
+ static char *conffile = NULL;
+ static _Bool use_labels = 0;
+-/* #endif (SENSORS_API_VERSION >= 0x400) && (SENSORS_API_VERSION < 0x500) */
+-
+-#else /* if SENSORS_API_VERSION >= 0x500 */
+-#error "This version of libsensors is not supported yet. Please report this " \
+-	"as bug."
+ #endif
+ 
+ static featurelist_t *first_feature = NULL;
+@@ -223,7 +218,7 @@ static int sensors_config(const char *key, const char *value) {
+     if (IS_TRUE(value))
+       ignorelist_set_invert(sensor_list, 0);
+   }
+-#if (SENSORS_API_VERSION >= 0x400) && (SENSORS_API_VERSION < 0x500)
++#if (SENSORS_API_VERSION >= 0x400)
+   else if (strcasecmp(key, "UseLabels") == 0) {
+     use_labels = IS_TRUE(value) ? 1 : 0;
+   }
+@@ -353,7 +348,7 @@ static int sensors_load_conf(void) {
+   }   /* while sensors_get_detected_chips */
+ /* #endif SENSORS_API_VERSION < 0x400 */
+ 
+-#elif (SENSORS_API_VERSION >= 0x400) && (SENSORS_API_VERSION < 0x500)
++#elif (SENSORS_API_VERSION >= 0x400)
+   chip_num = 0;
+   while ((chip = sensors_get_detected_chips(NULL, &chip_num)) != NULL) {
+     const sensors_feature *feature;
+@@ -404,7 +399,7 @@ static int sensors_load_conf(void) {
+       } /* while (subfeature) */
+     }   /* while (feature) */
+   }     /* while (chip) */
+-#endif /* (SENSORS_API_VERSION >= 0x400) && (SENSORS_API_VERSION < 0x500) */
++#endif /* (SENSORS_API_VERSION >= 0x400) */
+ 
+   if (first_feature == NULL) {
+     sensors_cleanup();
+@@ -479,7 +474,7 @@ static int sensors_read(void) {
+   } /* for fl = first_feature .. NULL */
+ /* #endif SENSORS_API_VERSION < 0x400 */
+ 
+-#elif (SENSORS_API_VERSION >= 0x400) && (SENSORS_API_VERSION < 0x500)
++#elif (SENSORS_API_VERSION >= 0x400)
+   for (featurelist_t *fl = first_feature; fl != NULL; fl = fl->next) {
+     double value;
+     int status;
+@@ -518,7 +513,7 @@ static int sensors_read(void) {
+ 
+     sensors_submit(plugin_instance, type, type_instance, value);
+   } /* for fl = first_feature .. NULL */
+-#endif /* (SENSORS_API_VERSION >= 0x400) && (SENSORS_API_VERSION < 0x500) */
++#endif /* (SENSORS_API_VERSION >= 0x400) */
+ 
+   return (0);
+ } /* int sensors_read */
+-- 
+2.14.1
+