From 719a1a2a11aa9ef5eb9ec3b351af901a487c63c9 Mon Sep 17 00:00:00 2001
From: Magnus Jacobsson <Magnus.Jacobsson@berotec.se>
Date: Sat, 1 Jan 2022 16:52:13 +0100
Subject: [PATCH] cgraph++: use GVDLL instead of _WIN32 to control
 storage-class attributes in AGraph.h

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

diff --git a/lib/cgraph++/AGraph.h b/lib/cgraph++/AGraph.h
index fc779472e..16d77343a 100644
--- a/lib/cgraph++/AGraph.h
+++ b/lib/cgraph++/AGraph.h
@@ -5,7 +5,7 @@
 
 #include <cgraph/cgraph.h>
 
-#ifdef _WIN32
+#ifdef GVDLL
 #if cgraph___EXPORTS // CMake's substitution of cgraph++_EXPORTS
 #define AGRAPH_API __declspec(dllexport)
 #else
-- 
2.40.0