From 8d18e5d1d5d45493f519634ce0e9b09d675afef2 Mon Sep 17 00:00:00 2001
From: Ivan Maidanski <ivmai@mail.ru>
Date: Fri, 2 Mar 2018 11:28:50 +0300
Subject: [PATCH] Workaround missing extern 'C' for _DYNAMIC in link.h on some
 Linux hosts

Issue #206 (bdwgc).

* dyn_load.c [DYNAMIC_LOADING && (SCO_ELF || DGUX || HURD
|| __ELF__ && (LINUX || FREEBSD || NACL || NETBSD || OPENBSD))
&& !HOST_ANDROID]: Put EXTERN_C_BEGIN/END around include link.h; add
comment.
---
 dyn_load.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dyn_load.c b/dyn_load.c
index 110d9b1..77db365 100644
--- a/dyn_load.c
+++ b/dyn_load.c
@@ -131,7 +131,10 @@ STATIC GC_has_static_roots_func GC_has_static_roots = 0;
       };
 #   endif
 # else
+    EXTERN_C_BEGIN      /* Workaround missing extern "C" around _DYNAMIC */
+                        /* symbol in link.h of some Linux hosts.         */
 #   include <link.h>
+    EXTERN_C_END
 # endif
 #endif
 
-- 
2.7.4