cmake: Search for libjson-c

Since we use libblobmsg_json which uses libjson-c internally, make sure
we find this library.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f191fa5..4052bcd 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
 
 SET(SOURCES main.c dns.c announce.c cache.c service.c util.c ubus.c interface.c)
 
-SET(LIBS ubox ubus resolv blobmsg_json)
+SET(LIBS ubox ubus resolv blobmsg_json json-c)
 
 IF(DEBUG)
   ADD_DEFINITIONS(-DDEBUG -g3)