yang parser CHANGE include parser_yang.c into build system
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f218e21..0202a3a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -156,7 +156,8 @@
     src/log.c
     src/hash_table.c
     src/set.c
-    src/context.c)
+    src/context.c
+    src/parser_yang.c)
 
 #set(lintsrc
 #    tools/lint/main.c