From 04ccf1fe3e0f9d424145803b8c202fa959273345 Mon Sep 17 00:00:00 2001
From: Magnus Jacobsson <Magnus.Jacobsson@berotec.se>
Date: Mon, 10 Jan 2022 16:33:35 +0100
Subject: [PATCH] gvc++: use GVDLL instead of _WIN32 to control storage-class
 attributes in GVContext.h

Towards https://gitlab.com/graphviz/graphviz/-/issues/2173.
---
 lib/gvc++/GVContext.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/gvc++/GVContext.h b/lib/gvc++/GVContext.h
index 4b9607459..62d10edb5 100644
--- a/lib/gvc++/GVContext.h
+++ b/lib/gvc++/GVContext.h
@@ -4,7 +4,7 @@
 
 #include <gvc/gvc.h>
 
-#ifdef _WIN32
+#ifdef GVDLL
 #if gvc___EXPORTS // CMake's substitution of gvc++_EXPORTS
 #define GVCONTEXT_API __declspec(dllexport)
 #else
-- 
2.40.0