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Utkarsh Ayachit authored
* Added new macros to vtkModuleMacros.cmake to add targets for build-tools. Now any component/module creating a tool that's used at compile time should use the vtk_compile_tools_target() macro. * vtk_compile_tools_target(), besides ensuring that the target properties are setup properly, adds the target to the VTK_COMPILETOOLS_TARGETS list. * As a last step, VTK_COMPILETOOLS_TARGETS are exported to both VTKTargets.cmake and VTKCompileToolsConfig.cmake. * When cross compiling VTKCompileToolsConfig.cmake is imported to load information about all the build tools. * vtkCompileTools is a new virtual target that can be used to build host-tools. It includes all the targets exported using vtk_compile_tools_target() or vtk_compile_tools_target_export() macros. * For projects, like ParaView, that contain VTK, added a mechanism for the parent project to manage importing of the compile tools when cross compiling. Change-Id: Ibf38868d8ea5f562c7c2682936c72bc11208c5c9
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