1 files changed, 15 insertions, 1 deletions

diff --git a/gl/sockets.h b/gl/sockets.h
index a0b1601..55077ae 100644
--- a/gl/sockets.h
+++ b/gl/sockets.h
@@ -1,6 +1,6 @@
 /* sockets.h - wrappers for Windows socket functions
 
-   Copyright (C) 2008-2023 Free Software Foundation, Inc.
+   Copyright (C) 2008-2024 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
@@ -20,6 +20,15 @@
 #ifndef SOCKETS_H
 #define SOCKETS_H 1
 
+/* This file uses _GL_ATTRIBUTE_CONST.  */
+#if !_GL_CONFIG_H_INCLUDED
+ #error "Please include config.h first."
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define SOCKETS_1_0 0x0001
 #define SOCKETS_1_1 0x0101
 #define SOCKETS_2_0 0x0002
@@ -38,6 +47,11 @@ int gl_sockets_cleanup (void)
 #endif
   ;
 
+#ifdef __cplusplus
+}
+#endif
+
+
 /* This function is useful it you create a socket using gnulib's
    Winsock wrappers but needs to pass on the socket handle to some
    other library that only accepts sockets. */