lib/edgepaint: MSBuild: define GVDLL in lab_gamut project file

An upcoming commit will change lab_gamut.h to use the GVDLL symbol to
enable storage-class attributes.

This change ensures that the lab_gamut symbols will be defined with
the dllexport attribute, which will eliminate the need for a .def
file.

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

diff --git a/lib/edgepaint/lab_gamut.vcxproj b/lib/edgepaint/lab_gamut.vcxproj
index dc2da062f5c97184942503224b9ecb04b037e456..dc1b9856e738b2684ae43f0c0301de4424bc7000 100644 (file)
--- a/lib/edgepaint/lab_gamut.vcxproj
+++ b/lib/edgepaint/lab_gamut.vcxproj
@@ -54,7 +54,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>$(SolutionDir)lib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_DEBUG;_WINDOWS;_USRDLL;LAB_GAMUT_EXPORTS;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_WINDOWS;_USRDLL;GVDLL;LAB_GAMUT_EXPORTS;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeader />
@@ -75,7 +75,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <AdditionalIncludeDirectories>$(SolutionDir)lib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;LAB_GAMUT_EXPORTS;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;GVDLL;LAB_GAMUT_EXPORTS;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeader />
       <WarningLevel>Level4</WarningLevel>
       <EnablePREfast>false</EnablePREfast>