added -g by default.

Author: agentzh

Makefile

@@ -15,7 +15,7 @@ LUA_VERSION =       5.1
 TARGET =            cjson.so
 PREFIX =            /usr/local
 #CFLAGS =            -g -Wall -pedantic -fno-inline
-CFLAGS =            -O3 -Wall -pedantic -DNDEBUG
+CFLAGS =            -O3 -Wall -pedantic -DNDEBUG -g
 CJSON_CFLAGS =      -fpic
 CJSON_LDFLAGS =     -shared
 LUA_INCLUDE_DIR ?=   $(PREFIX)/include