Fix ManProc for OS X

[xboard.git] / gtk / xboard.c

diff --git a/gtk/xboard.c b/gtk/xboard.c
index fa13d74..2a46f09 100644 (file)
--- a/gtk/xboard.c
+++ b/gtk/xboard.c
@@ -5,7 +5,7 @@
  * Massachusetts.
  *
  * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
- * 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+ * 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
  *
  * The following terms apply to Digital Equipment Corporation's copyright
  * interest in XBoard:
@@ -1786,7 +1786,9 @@ void
 ManProc ()
 {   // called from menu
 #ifdef __APPLE__
-    system("%s ./man.command", appData.sysOpen);
+    char buf[MSG_SIZ];
+    snprintf(buf, MSG_SIZ, "%s ./man.command", appData.sysOpen);
+    system(buf);
 #else
     system("xterm -e man xboard &");
 #endif