Test libjson-c

ldd.out

$ ldd test
        linux-vdso.so.1 =>  (0x00007fffaf5ff000)
        libjson-c.so.2 => /usr/local/lib/libjson-c.so.2 (0x00007ff4d7c29000)
        libm.so.6 => /lib64/libm.so.6 (0x00007ff4d799c000)
        libc.so.6 => /lib64/libc.so.6 (0x00007ff4d7609000)
        /lib64/ld-linux-x86-64.so.2 (0x00007ff4d7e33000)

makefile

all:
	gcc -L/usr/local/lib /usr/local/lib/libjson-c.so -lm -o test testjson-c.c

nm-json_token.out

$ nm test | grep json_token
0000000000600bc0 B json_tokener_errors
                 U json_tokener_free
                 U json_tokener_new
                 U json_tokener_parse_ex

testjson-c.c

#include <stdio.h>
#include <json/json.h>
#include <json/json_object_private.h>

int main(int argc, char* argv[])
{
  char *geojson = "{}"; //argv[1];
  json_tokener* jstok = json_tokener_new();
  json_object* poObj = json_tokener_parse_ex(jstok, geojson, -1);
  if( jstok->err != json_tokener_success)
  {
    char err[256];
    snprintf(err, 256, "%s (at offset %d)", json_tokener_errors[jstok->err], jstok->char_offset);
    json_tokener_free(jstok);
  }
  json_tokener_free(jstok);
  return 0;
}