From 9a860ffa152e440abbc88f58426e4897e8d0e96c Mon Sep 17 00:00:00 2001
From: Ivan Maidanski <ivmai@mail.ru>
Date: Fri, 21 Oct 2016 11:18:22 +0300
Subject: [PATCH] Eliminate 'ISO C forbids an empty translation unit' GCC
 pedantic warning

"extern int GC_quiet" is added to suppress compiler warning.

* extra/msvc_dbg.c [_M_AMD64 || !_MSC_VER] (GC_quiet): Declare external
variable.
---
 extra/msvc_dbg.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/extra/msvc_dbg.c b/extra/msvc_dbg.c
index b3da82f3..8803c4b0 100644
--- a/extra/msvc_dbg.c
+++ b/extra/msvc_dbg.c
@@ -376,4 +376,9 @@ char** backtrace_symbols(void*const* addresses, int count)
   return symbols;
 }
 
-#endif /* !_M_AMD64 */
+#else
+
+  extern int GC_quiet;
+        /* ANSI C does not allow translation units to be empty. */
+
+#endif /* _M_AMD64 */
-- 
2.50.1