X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/d983a10b9a070fd8f6d4f48ec44e5514b62feaa6..9bf31d1d3f35880c652f76509d1e27d33e454121:/lib/sig2str.h

diff --git a/lib/sig2str.h b/lib/sig2str.h
index 75eff7d7c1..2730774d16 100644
--- a/lib/sig2str.h
+++ b/lib/sig2str.h
@@ -1,6 +1,6 @@
 /* sig2str.h -- convert between signal names and numbers
 
-   Copyright (C) 2002, 2005, 2009-2012 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005, 2009-2016 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -27,15 +27,25 @@
 /* Size of a buffer needed to hold a signal name like "HUP".  */
 # define SIG2STR_MAX (sizeof "SIGRTMAX" + INT_STRLEN_BOUND (int) - 1)
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 int sig2str (int, char *);
 int str2sig (char const *, int *);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
 
 /* An upper bound on signal numbers allowed by the system.  */
 
 #if defined _sys_nsig
 # define SIGNUM_BOUND (_sys_nsig - 1)
+#elif defined _SIG_MAXSIG
+# define SIGNUM_BOUND (_SIG_MAXSIG - 2) /* FreeBSD >= 7.  */
 #elif defined NSIG
 # define SIGNUM_BOUND (NSIG - 1)
 #else