ortho: MSBuild: define GVDLL

Without this change, an upcoming commit in this series that will use
GVDLL instead of _WIN32 to enable Microsoft-specific storage-class
attributes would cause this error:

neatogen.lib(neatosplines.obj) : error LNK2019: unresolved external symbol _orthoEdges referenced in function __spline_edges [C:\GitLab-Runner\builds\magjac\graphviz\plugin\neato_layout\gvplugin_neato_layout.vcxproj]

Since https://gitlab.com/graphviz/graphviz/-/merge_requests/2182,
setting GVDLL is the preferred single mechanism to enable
Microsoft-specific storage-class attributes.

Also towards
https://gitlab.com/graphviz/graphviz/-/issues/2058#note_678679545

diff --git a/lib/ortho/gvortho.vcxproj b/lib/ortho/gvortho.vcxproj
index debb56b52ac9ee3b79d0f45056fa12396d0ae591..59a1dca3f2098f9e31202f2aa933642539851dd4 100644 (file)
--- a/lib/ortho/gvortho.vcxproj
+++ b/lib/ortho/gvortho.vcxproj
@@ -52,7 +52,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>$(ProjectDir);$(SolutionDir)windows\include;$(SolutionDir)lib;$(SolutionDir)lib\cdt;$(SolutionDir)lib\cgraph;$(SolutionDir)lib\common;$(SolutionDir)lib\gvc;$(SolutionDir)lib\pathplan;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_DEBUG;_LIB;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_LIB;WIN32_DLL;GVDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -67,7 +67,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <AdditionalIncludeDirectories>$(ProjectDir);$(SolutionDir)windows\include;$(SolutionDir)lib;$(SolutionDir)lib\cdt;$(SolutionDir)lib\cgraph;$(SolutionDir)lib\common;$(SolutionDir)lib\gvc;$(SolutionDir)lib\pathplan;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>NDEBUG;_LIB;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_LIB;WIN32_DLL;GVDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeader />
       <WarningLevel>Level4</WarningLevel>
       <EnablePREfast>true</EnablePREfast>