remote: use absolute path to check for daemons

virFileFindResource needs to be given the absolute build path otherwise
its results will vary according to the CWD, leading to spurious failures
in dev testing.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

src/remote/remote_daemon_dispatch.c

@@ -2001,7 +2001,9 @@ remoteDispatchProbeURI(bool readonly,
 
             daemonname = g_strdup_printf("virt%sd", drivers[i]);
 
-            if (!(daemonpath = virFileFindResource(daemonname, "src", SBINDIR)))
+            if (!(daemonpath = virFileFindResource(daemonname,
+                                                   abs_top_builddir "/src",
+                                                   SBINDIR)))
                 return -1;
 
             if (!virFileExists(daemonpath)) {