[PATCH 3/6] Disable sfdump if there is no xrandr support.

Without xrandr support, sfdump command has no interest.
---
 src/actions.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/actions.c b/src/actions.c
index 77d5cee..faddbd1 100644
--- a/src/actions.c
+++ b/src/actions.c
@@ -5599,12 +5599,17 @@ cmd_set (int interactive UNUSED, struct cmdarg **args)
 cmdret *
 cmd_sfdump (int interactively UNUSED, struct cmdarg **args UNUSED)
 {
+#ifdef HAVE_XRANDR
   char screen_suffix[16];
   cmdret *ret;
   struct sbuf *dump;
   rp_frame *cur_frame;
   rp_screen *cur_screen;
 
+  if (!rp_have_xrandr) {
+    return cmdret_new (RET_FAILURE, "sfdump: no xrandr support");
+  }
+
   dump = sbuf_new (0);
 
   list_for_each_entry (cur_screen, &rp_screens, node)
@@ -5629,6 +5634,9 @@ cmd_sfdump (int interactively UNUSED, struct cmdarg **args UNUSED)
   ret = cmdret_new (RET_SUCCESS, "%s", sbuf_get (dump));
   sbuf_free (dump);
   return ret;
+#else
+  return cmdret_new (RET_FAILURE, "sfdump: no xrandr support");
+#endif
 }
 
 cmdret *
-- 
2.10.0