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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi Philip,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">thanks for the hint about the man page. Totally forgot about that.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Even though Config-mode generally has different rules, we don’t truly support that anyways as none of the exported targets
have the INTERFACE_INCLUDE_DIRECTORIES (in which case the LLVM_INCLUDE_DIRS variable would become unnecessary anyways).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Johannes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Philip Pfaffe [mailto:philip.pfaffe@gmail.com]
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<b>Sent:</b> Thursday, September 1, 2016 14:01<br>
<b>To:</b> Mueller-Roemer, Johannes Sebastian <Johannes.Sebastian.Mueller-Roemer@igd.fraunhofer.de><br>
<b>Cc:</b> Chris Bieneman (cbieneman@apple.com) <cbieneman@apple.com>; llvm-dev@lists.llvm.org<br>
<b>Subject:</b> Re: [llvm-dev] change in CMake variable names breaks existing uses and does not conform to CMake conventions<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Everyone, (resending because I can't get the hang of Reply All)<o:p></o:p></p>
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<p class="MsoNormal">I second Johannes.<o:p></o:p></p>
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<p class="MsoNormal">cmake's own Find* man page suggests using the _DIRS variant "to keep things consistent":<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://cmake.org/cmake/help/git-master/manual/cmake-developer.7.html#standard-variable-names">https://cmake.org/cmake/help/git-master/manual/cmake-developer.7.html#standard-variable-names</a><o:p></o:p></p>
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<p class="MsoNormal">Granted, we're supporting Config-mode and not Module-mode, but i think the variable name rules should still apply for consistency.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best<o:p></o:p></p>
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<p class="MsoNormal">Philip<o:p></o:p></p>
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<p class="MsoNormal">2016-09-01 13:31 GMT+02:00 Mueller-Roemer, Johannes Sebastian via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>>:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Hi Chris and everyone else,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I just noticed that some of my builds broke due to commit 280013, as LLVM_INCLUDE_DIRS was renamed to LLVM_INCLUDE_DIR. In and of itself, not much of an issue
as the fix is just to remove one character (in a couple of places). However, I would like to discuss if this rename is desirable at all. Sure, in-tree LLVM_INCLUDE_DIR is used everywhere, however not providing an ${NAME}_INCLUDE_DIRS variable goes against
CMake conventions. See for example the find scripts included with CMake itself:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"><a href="https://cmake.org/cmake/help/v3.6/module/FindZLIB.html" target="_blank">https://cmake.org/cmake/help/v3.6/module/FindZLIB.html</a> -> provides ZLIB_INCLUDE_DIRS
(and not ZLIB_INCLUDE_DIR) even though it is typically only one directory</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">And the same holds true for most other Find${NAME}.cmake scripts I had a look at (Boost, Bullet, CUDA, Freetype, XMLRPC, Zlib). I’ll admit there are 1 or 2 exceptions
(such as OpenGL) but in general I think it would be better to stick to the more common/conventional case.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Thoughts?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Regards</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">Johannes</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Fraunhofer-Institut für Graphische Datenverarbeitung IGD<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Fraunhoferstr. 5 | 64283 Darmstadt | Germany<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Tel
<a href="tel:%2B49%206151%20155-606" target="_blank">+49 6151 155-606</a> | Fax
<a href="tel:%2B49%206151%20155-139" target="_blank">+49 6151 155-139</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="mailto:johannes.mueller-roemer@igd.fraunhofer.de" target="_blank">johannes.mueller-roemer@igd.fraunhofer.de</a> |
<a href="http://www.igd.fraunhofer.de" target="_blank">www.igd.fraunhofer.de</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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