libjson-c: Update to 0.12.1

Updates libjson-c and removes backport patch.

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

package/libs/libjson-c/Makefile

@@ -8,12 +8,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=json-c
-PKG_VERSION:=0.12
+PKG_VERSION:=0.12.1
 PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-nodoc.tar.gz
 PKG_SOURCE_URL:=https://s3.amazonaws.com/json-c_releases/releases/
-PKG_MD5SUM:=3ca4bbb881dfc4017e8021b5e0a8c491
+PKG_MD5SUM:=5b91ab230d9b6b0ee20fc19cf25094f5
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_SUBDIR)
 
 PKG_LICENSE:=MIT
 PKG_LICENSE_FILES:=COPYING

package/libs/libjson-c/patches/001-backport_compile_fix.patch

@@ -1,23 +0,0 @@
-commit 3859e99f50abe11a8dade28efa9ea3d99dfaac11
-Author: Petar Koretić <petar.koretic@gmail.com>
-Date:   Fri Apr 11 10:03:40 2014 +0200
-
-    Remove unused variable 'size'
-
-diff --git a/json_tokener.c b/json_tokener.c
-index 19de8ef..9a76293 100644
---- a/json_tokener.c
-+++ b/json_tokener.c
-@@ -352,12 +352,10 @@ struct json_object* json_tokener_parse_ex(struct json_tokener *tok,
- 
-     case json_tokener_state_inf: /* aka starts with 'i' */
-       {
--	int size;
- 	int size_inf;
- 	int is_negative = 0;
- 
- 	printbuf_memappend_fast(tok->pb, &c, 1);
--	size = json_min(tok->st_pos+1, json_null_str_len);
- 	size_inf = json_min(tok->st_pos+1, json_inf_str_len);
- 	char *infbuf = tok->pb->buf;
- 	if (*infbuf == '-')