W32 VS projects: fixed: define 'WIN32' only on x32 platforms

w32/common/common-build-settings.vcxproj

@@ -5,6 +5,8 @@
          Only 0 and 1 are used currently -->
     <TargetOSLevel Condition="$(PlatformToolset.EndsWith('_xp'))">0</TargetOSLevel>
     <TargetOSLevel Condition="! $(PlatformToolset.EndsWith('_xp'))">1</TargetOSLevel>
+    <MhdNumBits Condition="$(Platform.EndsWith('64'))">64</MhdNumBits>
+    <MhdNumBits Condition="! $(Platform.EndsWith('64'))">32</MhdNumBits>
   </PropertyGroup>
   <PropertyGroup>
     <IncludePath>$(SolutionDir);$(MhdW32Common);$(MhdSrc)include;$(IncludePath)</IncludePath>
@@ -23,8 +25,8 @@
     <ClCompile>
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
-      <PreprocessorDefinitions>WIN32;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4996;4820;4127;5045</DisableSpecificWarnings>
       <TreatSpecificWarningsAsErrors>4013</TreatSpecificWarningsAsErrors>
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
@@ -34,6 +36,11 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(MhdNumBits)' == '32'">
+    <ClCompile>
+      <PreprocessorDefinitions>WIN32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+  </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(TargetOSLevel)'&gt;'0'">
     <ClCompile>
       <PreprocessorDefinitions>_WIN32_WINNT=0x0600;%(PreprocessorDefinitions)</PreprocessorDefinitions>