From: Magnus Jacobsson <Magnus.Jacobsson@berotec.se>
Date: Sat, 31 Jul 2021 21:51:00 +0000 (+0200)
Subject: lib/edgepaint: add support for the dllexport storage-class attribute in lab_gamut.h
X-Git-Tag: 3.0.0~129^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b535677e6b6479930b8c77050bd6c3d048b3c0df;p=graphviz

lib/edgepaint: add support for the dllexport storage-class attribute in lab_gamut.h

Also, storage-class attributes are now added only when the GVDLL
symbol is defined.

This removes the need to use a .def file.

Towards https://gitlab.com/graphviz/graphviz/-/issues/2058.
---

diff --git a/lib/edgepaint/lab_gamut.h b/lib/edgepaint/lab_gamut.h
index 66bf57dd2..5a6dddb03 100644
--- a/lib/edgepaint/lab_gamut.h
+++ b/lib/edgepaint/lab_gamut.h
@@ -14,8 +14,12 @@
 extern "C" {
 #endif
 
-#if defined(_WIN32) && !defined(LAB_GAMUT_EXPORTS)
+#ifdef GVDLL
+#ifdef LAB_GAMUT_EXPORTS
+#define EXTERN __declspec(dllexport)
+#else
 #define EXTERN __declspec(dllimport)
+#endif
 #else
 #define EXTERN /* nothing */
 #endif