[libvirt] [PATCH v2] rpc: fixing compilation error due to deprecated ssh_get_publickey().

[Julio Faracco]

After 0.7.5 release, libssh deprecated ssh_get_publickey() method to
introduce ssh_get_server_publickey(). This commit check the current
version of libssh and use the proper method during the compilation.
See the error:

make[3]: Entering directory '/home/julio/Desktop/virt/libvirt/src'
  CC       rpc/libvirt_net_rpc_la-virnetlibsshsession.lo
rpc/virnetlibsshsession.c:217:9: error: 'ssh_get_publickey' is deprecated [-Werror,-Wdeprecated-declarations]
    if (ssh_get_publickey(sess->session, &key) != SSH_OK) {
        ^
/usr/include/libssh/libssh.h:489:1: note: 'ssh_get_publickey' has been explicitly marked deprecated here
SSH_DEPRECATED LIBSSH_API int ssh_get_publickey(ssh_session session, ssh_key *key);
^
/usr/include/libssh/libssh.h:99:40: note: expanded from macro 'SSH_DEPRECATED'
                                       ^
1 error generated.
Makefile:8604: recipe for target 'rpc/libvirt_net_rpc_la-virnetlibsshsession.lo' failed

Signed-off-by: Julio Faracco <jcfaracco at gmail.com>
---
 src/rpc/virnetlibsshsession.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/rpc/virnetlibsshsession.c b/src/rpc/virnetlibsshsession.c
index 309e8a9340..9dc7976828 100644
--- a/src/rpc/virnetlibsshsession.c
+++ b/src/rpc/virnetlibsshsession.c
@@ -214,7 +214,11 @@ virLibsshServerKeyAsString(virNetLibsshSessionPtr sess)
     size_t keyhashlen;
     char *str;
 
-    if (ssh_get_publickey(sess->session, &key) != SSH_OK) {
+#if LIBSSH_VERSION_INT <= 0x0705 /* 0.7.5 */
+# define ssh_get_server_publickey ssh_get_publickey
+#endif
+
+    if (ssh_get_server_publickey(sess->session, &key) != SSH_OK) {
         virReportError(VIR_ERR_LIBSSH, "%s",
                        _("failed to get the key of the current "
                          "session"));
-- 
2.17.0