mm2gv: 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 cgraph.h.

Without this change, errors like this would occur:

mm2gv.obj : error LNK2001: unresolved external symbol _Agdirected

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

diff --git a/cmd/tools/mm2gv.vcxproj b/cmd/tools/mm2gv.vcxproj
index d3bdaf464ced4243e3fb8cda220454f5e1fedf13..5babca85ba67082f7b00b6a8dd4211b28f357b9a 100644 (file)
--- a/cmd/tools/mm2gv.vcxproj
+++ b/cmd/tools/mm2gv.vcxproj
@@ -53,7 +53,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;GVDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeader />
@@ -77,7 +77,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;GVDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeader />
       <WarningLevel>Level4</WarningLevel>
       <EnablePREfast>true</EnablePREfast>