[source] libjson-c: Update to 0.12.1

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/edbc8fec8a9747a746fc321e97d9b96f7e95fa7e

commit edbc8fec8a9747a746fc321e97d9b96f7e95fa7e
Author: Daniel Engberg <daniel.engberg.lists at pyret.net>
AuthorDate: Fri Sep 23 17:39:47 2016 -0500

    libjson-c: Update to 0.12.1
    
    Updates libjson-c and removes backport patch.
    
    Signed-off-by: Daniel Engberg <daniel.engberg.lists at pyret.net>
---
 package/libs/libjson-c/Makefile                    |  8 +++++---
 .../patches/001-backport_compile_fix.patch         | 23 ----------------------
 2 files changed, 5 insertions(+), 26 deletions(-)

diff --git a/package/libs/libjson-c/Makefile b/package/libs/libjson-c/Makefile
index 404a55d..51cc645 100644
--- a/package/libs/libjson-c/Makefile
+++ b/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
diff --git a/package/libs/libjson-c/patches/001-backport_compile_fix.patch b/package/libs/libjson-c/patches/001-backport_compile_fix.patch
deleted file mode 100644
index e83f5d2..0000000
--- a/package/libs/libjson-c/patches/001-backport_compile_fix.patch
+++ /dev/null
@@ -1,23 +0,0 @@
-commit 3859e99f50abe11a8dade28efa9ea3d99dfaac11
-Author: Petar Koretić <petar.koretic at 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 == '-')