'gpgme_op_export_keys' has not been declared

[buctysc]

OS: CENTOS 6.5
lang : node 0.10.31

headers:
#include iostream
#include node.h
#include v8.h
#include node_buffer.h
#include locale.h
#include stdlib.h
#include errno.h
#include gpgme.h
#include cstring


when i compile this c++ file I catch a error “'gpgme_op_export_keys' has not been declared”,
and i have no idea how to fix it
-------------- next part --------------
An HTML attachment was scrubbed...
URL: </pipermail/attachments/20140909/9de0608b/attachment.html>