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<p class="MsoNormal">> In the build dir the generated files are placed in <build-dir>/share/llvm/cmake. After install, in <prefix>/lib/llvm/share/llvm/cmake.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Really? According to this commit<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">r259821 | olesalscheider | 2016-02-04 20:08:19 +0000 (Thu, 04 Feb 2016) | 8 lines<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">Install cmake files to lib/cmake/llvm<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">This is the right location for platform-specific files.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">On some distributions (e. g. Exherbo), a package can be installed for several<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">architectures in parallel, but the architecture-independent files are shared.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">Therefore, we must not install architecture-dependent files (like the CMake<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">config and export files) to share/.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New";mso-fareast-language:EN-US">------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">They’re built to <build-dir>/lib/cmake/llvm and installed to <prefix>/lib/cmake/llvm, which matches<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><prefix>/(lib/<arch>|lib|share)/cmake/<name>*/ (U)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">in the cmake documentation you’ve linked.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">(Note: this is trunk, I haven’t looked at 3.x or 4.0)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">John<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> llvm-dev [mailto:llvm-dev-bounces@lists.llvm.org]
<b>On Behalf Of </b>Pawel Bylica via llvm-dev<br>
<b>Sent:</b> 17 August 2016 11:13<br>
<b>To:</b> llvm-dev; Sylvestre Ledru<br>
<b>Subject:</b> [llvm-dev] RFC: Move cmake shared files<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The cmake files generated when building LLVM (including LLVMConfig.cmake) are to support cmake's find_package() [1] function.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">In the build dir the generated files are placed in <build-dir>/share/llvm/cmake. After install, in <prefix>/lib/llvm/share/llvm/cmake.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">CMake is not able to find them without a hint. CMake searches these paths on Unix:<o:p></o:p></p>
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<p class="MsoNormal">- <prefix>/lib/llvm/cmake<o:p></o:p></p>
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<p class="MsoNormal">- <prefix>/share/llvm/cmake<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Some distributions try to workaround the problem by moving contents of /lib/llvm/share/llvm/cmake to /share/llvm/cmake, but usually that breaks the configuration included in LLVMConfig.cmake because of some hardcoded paths there.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I propose to move the generated files to <build-dir>/cmake and install them to <prefix>/lib/llvm/cmake.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">This should also help on Windows, where CMake searches in <prefix>/llvm/cmake.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">- Paweł<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">[1] <a href="https://cmake.org/cmake/help/v3.0/command/find_package.html">https://cmake.org/cmake/help/v3.0/command/find_package.html</a><o:p></o:p></p>
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