expr: 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:

expr.lib(y.tab.obj) : error LNK2001: unresolved external symbol _Dtset

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

diff --git a/lib/expr/expr.vcxproj b/lib/expr/expr.vcxproj
index bddfeb8f7abeb548183c6e1bbb21541ff6525ead..b3423fce7bba89e1967a63704b2f866657542f5d 100644 (file)
--- a/lib/expr/expr.vcxproj
+++ b/lib/expr/expr.vcxproj
@@ -52,7 +52,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>$(ProjectDir);$(SolutionDir)windows\include;$(SolutionDir)lib;$(SolutionDir)lib\cdt;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>NDEBUG;_LIB;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_LIB;GVDLL;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <PrecompiledHeader />
@@ -69,7 +69,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <AdditionalIncludeDirectories>$(ProjectDir);$(SolutionDir)windows\include;$(SolutionDir)lib;$(SolutionDir)lib\cdt;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>NDEBUG;_LIB;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_LIB;GVDLL;WIN32_DLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PrecompiledHeader />
       <WarningLevel>Level4</WarningLevel>
       <EnablePREfast>true</EnablePREfast>