libjson-c: update to 0.16

Fix:
- 001-dont-build-docs.patch

Remove upstreamed patch:
- 010-clang.patch

Changelog:

Deprecated and removed features:
--------------------------------
* JSON_C_OBJECT_KEY_IS_CONSTANT is deprecated in favor of
  JSON_C_OBJECT_ADD_CONSTANT_KEY
* Direct access to lh_table and lh_entry structure members is deprecated.
  Use access functions instead, lh_table_head(), lh_entry_next(), etc...
* Drop REFCOUNT_DEBUG code.

New features
------------
* The 0.16 release introduces no new features

Build changes
-------------
* Add a DISABLE_EXTRA_LIBS option to skip using libbsd
* Add a DISABLE_JSON_POINTER option to skip compiling in json_pointer support.

Significant changes and bug fixes
---------------------------------
* Cap string length at INT_MAX to avoid various issues with very long strings.
* json_object_deep_copy: fix deep copy of strings containing '\0'
* Fix read past end of buffer in the "json_parse" command
* Avoid out of memory accesses in the locally provided vasprintf() function
  (for those platforms that use it)
* Handle allocation failure in json_tokener_new_ex
* Fix use-after-free in json_tokener_new_ex() in the event of printbuf_new() returning NULL
* printbuf_memset(): set gaps to zero - areas within the print buffer which
  have not been initialized by using printbuf_memset
* printbuf: return -1 on invalid arguments (len < 0 or total buffer > INT_MAX)
* sprintbuf(): propagate printbuf_memappend errors back to the caller

Optimizations
--------------
* Speed up parsing by replacing ctype functions with simplified, faster
  non-locale-sensitive ones in json_tokener and json_object_to_json_string.
* Neither vertical tab nor formfeed are considered whitespace per the JSON spec
* json_object: speed up creation of objects, calloc() -> malloc() + set fields
* Avoid needless extra strlen() call in json_c_shallow_copy_default() and
  json_object_equal() when the object is known to be a json_type_string.

Other changes
-------------
* Validate size arguments in arraylist functions.
* Use getrandom() if available; with GRND_NONBLOCK to allow use of json-c
  very early during boot, such as part of cryptsetup.
* Use arc4random() if it's available.
* random_seed: on error, continue to next method instead of exiting the process
* Close file when unable to read from /dev/urandom in get_dev_random_seed()

Signed-off-by: Nick Hainke <vincent@systemli.org>

package/libs/libjson-c/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=json-c
-PKG_VERSION:=0.15
-PKG_RELEASE:=2
+PKG_VERSION:=0.16
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-nodoc.tar.gz
 PKG_SOURCE_URL:=https://s3.amazonaws.com/json-c_releases/releases/
-PKG_HASH:=99bca4f944b8ced8ae0bbc6310d6a3528ca715e69541793a1ef51f8c5b4b0878
+PKG_HASH:=ac8a3dd6820daaca579b23fbc74664310fbc3d67f52f6707cda67d21dde5570f
 
 PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
 PKG_LICENSE:=MIT

package/libs/libjson-c/patches/001-dont-build-docs.patch

@@ -1,11 +1,11 @@
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
-@@ -401,8 +401,6 @@ set(JSON_C_SOURCES
+@@ -433,8 +433,6 @@ configure_file(json.h.cmakein ${PROJECT_
  include_directories(${PROJECT_SOURCE_DIR})
  include_directories(${PROJECT_BINARY_DIR})
  
 -add_subdirectory(doc)
 -
- # uninstall
- add_custom_target(uninstall
-   COMMAND cat ${PROJECT_BINARY_DIR}/install_manifest.txt | xargs rm
+ # "uninstall" custom target for make generators in unix like operating systems
+ # and if that target is not present
+ if (CMAKE_GENERATOR STREQUAL "Unix Makefiles")

package/libs/libjson-c/patches/010-clang.patch

@@ -1,11 +0,0 @@
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -265,7 +265,7 @@ message(STATUS "Wrote ${PROJECT_BINARY_D
- configure_file(${PROJECT_SOURCE_DIR}/cmake/json_config.h.in   ${PROJECT_BINARY_DIR}/json_config.h)
- message(STATUS "Wrote ${PROJECT_BINARY_DIR}/json_config.h")
- 
--if ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
-+if ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
-     set(CMAKE_C_FLAGS           "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections")
- 	if ("${DISABLE_WERROR}" STREQUAL "OFF")
- 	    set(CMAKE_C_FLAGS           "${CMAKE_C_FLAGS} -Werror")