patch 8.0.1795: lose contact with jobs when :gui forksv8.0.1795

Problem:    Lose contact with jobs when :gui forks.
Solution:   Don't fork when there is a running job. Make log message for a
            died job clearer.  Also close the terminal when stderr and stdout
            are the same FD.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/gui.h b/src/gui.h
index b63125b9b4..13c97e61bd 100644
--- a/src/gui.h
+++ b/src/gui.h
@@ -564,3 +564,7 @@ typedef enum
 #  define FUNC2GENERIC(func) G_CALLBACK(func)
 # endif
 #endif /* FEAT_GUI_GTK */
+
+#if defined(UNIX) && !defined(FEAT_GUI_MAC)
+# define GUI_MAY_FORK
+#endif