Add configuration option to the base/rom extension to make the toolchain (ARMCC/GCCE) known to the preprocessor stage of romb build.
<VisualStudioPropertySheet
ProjectType="Visual C++"
Version="8.00"
Name="pyd"
InheritedPropertySheets=".\pyproject.vsprops;.\release.vsprops"
>
<Tool
Name="VCCLCompilerTool"
PreprocessorDefinitions="Py_BUILD_CORE_MODULE"
RuntimeLibrary="2"
/>
<Tool
Name="VCLinkerTool"
OutputFile="$(OutDir)\$(ProjectName).pyd"
ProgramDatabaseFile="$(OutDir)\$(ProjectName).pdb"
ImportLibrary="$(OutDir)\$(TargetName).lib"
GenerateManifest="false"
/>
<Tool
Name="VCManifestTool"
EmbedManifest="false"
/>
<Tool
Name="VCPostBuildEventTool"
CommandLine=""
/>
</VisualStudioPropertySheet>