Create an additional libjson.so library that simply links against libjson-c, but emits a warning encouraging the use of the new library.

libjson.c

@@ -0,0 +1,27 @@
+
+/* dummy source file for compatibility purposes */
+
+#if defined(HAVE_CDEFS_H)
+#include <sys/cdefs.h>
+#endif
+
+#ifndef __warn_references
+
+#ifdef __GNUC__
+#define __warn_references(sym,msg)                      \
+    __asm(".pushsection .gnu.warning." #sym "\n"            \
+      ".ascii \"" msg "\"\n"                    \
+      ".popsection");
+
+#else
+#define __warn_references(sym,msg)    /* nothing */
+#endif
+
+#endif 
+
+#include "json_object.h"
+
+__warn_references(json_object_get, "Warning: please link against libjson-c instead of libjson");
+
+/*        __asm__(".section .gnu.warning." __STRING(sym)  \
+            " ; .ascii \"" msg "\" ; .text") */