plugin/dot_layout: 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 gvplugin_dot_layout.c.

Without this change, errors like this would occur:

EXEC : error : failed to resolve gvplugin_dot_layout_LTX_library in C:\Users\magja\graphviz\Debug\Graphviz\bin\gvplugin_dot_layout.dll

Towards https://gitlab.com/graphviz/graphviz/-/issues/2173.

diff --git a/plugin/dot_layout/gvplugin_dot_layout.vcxproj b/plugin/dot_layout/gvplugin_dot_layout.vcxproj
index 202a06aaf5da920684a1e31faaa90d4e873694d8..e107f50f31afc27345a593dca3267c93cd791d6b 100644 (file)
--- a/plugin/dot_layout/gvplugin_dot_layout.vcxproj
+++ b/plugin/dot_layout/gvplugin_dot_layout.vcxproj
@@ -52,6 +52,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>$(SolutionDir)windows\include;$(SolutionDir)lib;$(SolutionDir)lib\cdt;$(SolutionDir)lib\cgraph;$(SolutionDir)lib\common;$(SolutionDir)lib\gvc;$(SolutionDir)lib\pathplan;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>GVDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeader />
@@ -72,6 +73,7 @@
   <ItemDefinitionGroup Condition="'$(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\pathplan;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>GVDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeader />
       <WarningLevel>Level4</WarningLevel>
       <EnablePREfast>true</EnablePREfast>