[gnome-control-center] Make it possible to override SSHD_SERVICE

[Michael Biebl <mbiebl src gnome org>]

commit 1f4f6ded0fd4a1cc333148c7e4ab11b9631e4779
Author: Michael Biebl <biebl debian org>
Date:   Sun Jun 28 13:02:25 2015 +0200

    Make it possible to override SSHD_SERVICE
    
    Upstream of openssh does not yet ship a systemd service file, so distros
    add them downstream and unfortunately use different names: E.g. on
    Fedora the unit is called sshd.service, on Debian/Ubuntu it is called
    ssh.service.
    
    Therefore make it possible to override SSHD_SERVICE via CFLAGS.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=751326

 panels/sharing/cc-remote-login-helper.c |    3 +++
 panels/sharing/cc-remote-login.c        |    2 ++
 2 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/panels/sharing/cc-remote-login-helper.c b/panels/sharing/cc-remote-login-helper.c
index 6eb88db..87c12f3 100644
--- a/panels/sharing/cc-remote-login-helper.c
+++ b/panels/sharing/cc-remote-login-helper.c
@@ -20,7 +20,10 @@
  */
 
 #include <gio/gio.h>
+
+#ifndef SSHD_SERVICE
 #define SSHD_SERVICE "sshd.service"
+#endif
 
 static const gchar *service_list[] = { SSHD_SERVICE, NULL };
 
diff --git a/panels/sharing/cc-remote-login.c b/panels/sharing/cc-remote-login.c
index b9de0b3..e91fd50 100644
--- a/panels/sharing/cc-remote-login.c
+++ b/panels/sharing/cc-remote-login.c
@@ -21,7 +21,9 @@
 #include "cc-remote-login.h"
 #include <gio/gio.h>
 
+#ifndef SSHD_SERVICE
 #define SSHD_SERVICE "sshd.service"
+#endif
 
 typedef struct
 {