fish: Add --listen --csh to for csh, tcsh compatibility.

(Thanks Eric Blake).

1 files changed, 6 insertions, 1 deletions

diff --git a/fish/rc.c b/fish/rc.c
index 2d2f2277..a2bde4ae 100644
--- a/fish/rc.c
+++ b/fish/rc.c
@@ -198,7 +198,12 @@ rc_listen (void)
 
   if (pid > 0) {
     /* Parent process. */
-    printf ("GUESTFISH_PID=%d; export GUESTFISH_PID\n", pid);
+
+    if (!remote_control_csh)
+      printf ("GUESTFISH_PID=%d; export GUESTFISH_PID\n", pid);
+    else
+      printf ("setenv GUESTFISH_PID %d\n", pid);
+
     fflush (stdout);
     _exit (0);
   }