patch 7.4.1537
Problem:    Too many feature flags for pipes, jobs and channels.
Solution:   Only use FEAT_JOB_CHANNEL.
diff --git a/src/gui.c b/src/gui.c
index f7ec508..e91fcaf 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -4949,7 +4949,7 @@
 	 * of the argument ending up after the shell prompt. */
 	msg_clr_eos_force();
 	gui_start();
-#ifdef FEAT_CHANNEL
+#ifdef FEAT_JOB_CHANNEL
 	channel_gui_register_all();
 #endif
     }