gvc++: [nfc] align storage-class declarations to Graphviz standard in GVRenderData.h

diff --git a/lib/gvc++/GVRenderData.h b/lib/gvc++/GVRenderData.h
index 8ea7312a02d419815368bdf7dbfe18d5eb031554..64bc19b37cbabf65993853dbf4403b44eca5549e 100644 (file)
--- a/lib/gvc++/GVRenderData.h
+++ b/lib/gvc++/GVRenderData.h
@@ -9,7 +9,9 @@
 #else
 #define GVRENDER_API __declspec(dllimport)
 #endif
-#else
+#endif
+
+#ifndef GVRENDER_API
 #define GVRENDER_API /* nothing */
 #endif