Merge GSSAPI and cmake fixes from 'pre-0.78'.

unix/gss.c

@@ -140,6 +140,7 @@ struct ssh_gss_liblist *ssh_gss_setup(Conf *conf)
     list->libraries = snew(struct ssh_gss_library);
     list->nlibraries = 1;
 
+    list->libraries[0].id = 0;
     list->libraries[0].gsslogmsg = "Using statically linked GSSAPI";
 
 #define BIND_GSS_FN(name) \

unix/pageant.c

@@ -330,7 +330,11 @@ void pageant_fork_and_print_env(bool retain_tty)
         /* Get out of our previous process group, to avoid being
          * blasted by passing signals. But keep our controlling tty,
          * so we can keep checking to see if we still have one. */
+#if defined HAVE_NULLARY_SETPGRP
         setpgrp();
+#elif defined HAVE_BINARY_SETPGRP
+        setpgrp(0, 0);
+#endif
     } else {
         /* Do that, but also leave our entire session and detach from
          * the controlling tty (if any). */