Build target example to build a WSP using an MSBuild target

CreateWSP

<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
  <!-- Include this step after the current build "depends on" list -->
  <BuildDependsOn>
    $(BuildDependsOn);
    CreateWSP;
  </BuildDependsOn>
  <BinStash>$(SolutionDir)Bin\</BinStash>
  <PostBuildEvent></PostBuildEvent>
</PropertyGroup>
<Target Name="CreateWSP" Inputs="@(None);@(Content);$(OutDir)$(TargetFileName)" Outputs="$(OutDir)$(ProjectName).wsp">
  <PropertyGroup>
    <ConfigFolder>$(ProjectDir)bin\$(ConfigurationName)</ConfigFolder>
  </PropertyGroup>
  <MakeDir Directories="$(ConfigFolder)" Condition="!Exists('$(ConfigFolder)')" />
  <!-- For building when the output directory is not necessarily under the project root -->
  <Copy SourceFiles="$(BinStash)$(TargetFileName)" DestinationFolder="$(ConfigFolder)" Condition="!Exists('ConfigFolder)$(TargetFileName)')" />
  <Exec Command="$(SolutionDir)Tools\WSPBuilder.exe -CreateWSPFileList &quot;$(ProjectName).wspcontents.txt&quot;" WorkingDirectory="$(ProjectDir)" />
</Target>
</Project>