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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I presume there isn’t a way of conditionally adding a dependency (in required_libraries) for a component based on the targets built. Am I right?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I want to be able to do something like – “runtimedyld require hexagoncodegen if the Hexagon target has been enabled”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For simply building runtimedyld, I am doing the following in llvm-project / llvm/lib/ExecutionEngine/RuntimeDyld/CMakeLists.txt.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">if ("${LLVM_TARGETS_TO_BUILD}" MATCHES "Hexagon")<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> add_definitions(-DHEXAGON_TARGET_ENABLED)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> target_link_libraries(LLVMRuntimeDyld PRIVATE LLVMHexagonCodeGen)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">endif()<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But, in my case this is not enough because llvm-config is oblivious of this dependency because it is not expressed in LLVMBuild.txt in RuntimeDyld.
<o:p></o:p></p>
<p class="MsoNormal">FWIW, The Halide makefile uses llvm-config to, among other things, compute a link line for the Halide library itself.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there a way then to add a conditional dependency that llvm-build can deal with?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Pranav<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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