package: add json-c library

json-c is a JSON library written in C.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/Config.in

@@ -370,6 +370,7 @@ endmenu
 menu "JSON/XML"
 source "package/expat/Config.in"
 source "package/ezxml/Config.in"
+source "package/json-c/Config.in"
 source "package/libroxml/Config.in"
 source "package/libxml-parser-perl/Config.in"
 source "package/libxml2/Config.in"

package/json-c/Config.in

@@ -0,0 +1,11 @@
+config BR2_PACKAGE_JSON_C
+	bool "json-c"
+	help
+	  JSON-C - A JSON implementation in C
+
+	  JSON-C implements a reference counting object model that
+	  allows you to easily construct JSON objects in C, output
+	  them as JSON formatted strings and parse JSON formatted
+	  strings back into the C representation of JSON objects.
+
+	  http://oss.metaparadigm.com/json-c/

package/json-c/json-c.mk

@@ -0,0 +1,11 @@
+################################################################################
+#
+# json-c
+#
+################################################################################
+
+JSON_C_VERSION = 0.9
+JSON_C_SITE = http://oss.metaparadigm.com/json-c/
+JSON_C_INSTALL_STAGING = YES
+
+$(eval $(call AUTOTARGETS,package,json-c))