include twm.h in header files which rely upon its definitions

Signed-off-by: Thomas E. Dickey <dickey@invisible-island.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/session.h b/src/session.h
index 3b93fb7..c574a45 100644
--- a/src/session.h
+++ b/src/session.h
@@ -25,6 +25,9 @@
  */
 #ifndef _SESSION_H
 #define _SESSION_H
+
+#include "twm.h"
+
 #include <X11/SM/SMlib.h>
 
 extern void ConnectToSessionManager(char *previous_id);