From dbb0ecd311f913ce14dd88678aeca27d0a62efb6 Mon Sep 17 00:00:00 2001
From: Magnus Jacobsson <Magnus.Jacobsson@berotec.se>
Date: Sat, 1 Jan 2022 18:01:01 +0100
Subject: [PATCH] circogen: MSBuild: define GVDLL to ensure correct
 storage-class attributes

An upcoming commit will change the storage-class attributes to be
controlled by the GVDLL symbol in cdt.h.

Without this change, errors like this would occur:

circogen.lib(edgelist.obj) : error LNK2001: unresolved external symbol _Dtoset

Towards https://gitlab.com/graphviz/graphviz/-/issues/2173.
---
 lib/circogen/gvcircogen.vcxproj | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/circogen/gvcircogen.vcxproj b/lib/circogen/gvcircogen.vcxproj
index 4fb042ded..206dcd4ba 100644
--- a/lib/circogen/gvcircogen.vcxproj
+++ b/lib/circogen/gvcircogen.vcxproj
@@ -53,7 +53,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>$(SolutionDir)windows\include;$(SolutionDir)lib;$(SolutionDir)lib\cdt;$(SolutionDir)lib\cgraph;$(SolutionDir)lib\common;$(SolutionDir)lib\gvc;$(SolutionDir)lib\pack;$(SolutionDir)lib\pathplan</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_DEBUG;_LIB;WIN32_DLL;NEATOGEN_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_LIB;GVDLL;WIN32_DLL;NEATOGEN_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeader />
@@ -67,7 +67,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <AdditionalIncludeDirectories>$(SolutionDir)windows\include;$(SolutionDir)lib;$(SolutionDir)lib\cdt;$(SolutionDir)lib\cgraph;$(SolutionDir)lib\common;$(SolutionDir)lib\gvc;$(SolutionDir)lib\pack;$(SolutionDir)lib\pathplan</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>NDEBUG;_LIB;WIN32_DLL;NEATOGEN_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_LIB;GVDLL;WIN32_DLL;NEATOGEN_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeader />
       <WarningLevel>Level4</WarningLevel>
       <EnablePREfast>true</EnablePREfast>
-- 
2.50.1