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<span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"> are you sure you didn't have to tell it where the header files for Windows are?"</span><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"><br></span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">You should not have to and I do not. The point of CMake's configure step is that it probes your system to find out what tools to use and where to find libraries and include files. Because you specify use of the Visual Studio generator, it uses Microsoft's conventions to locate where the compiler, linker, libraries and include files are stored. That should be an automatic part of the Cmake 'configure' step. Which is why I was confused by it even looking for non-Windows include files, and then failing the configure step.</span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"><br></span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">With regard to the executable path for SVN or Nuget (or anything else), I cannot think of why you need to specify it for CMake to build LLVM. I see the error messages you posted, but in reality the LLVM build process should not need access to SVN to access the files, as all of the LLVM files should be viewable by CMake or any other program as normal files in the file system. You only need SVN-aware tools when doing change management activities or looking at earlier history. CMake is only working on the current version of the files which should be 100% viewable as normal files. Thus, CMake needs no knowledge of the SVN executable. As someone else said, you might be better off using the git repo version of LLVM instead.</span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"><br></span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">With regard to Perl, that appears to be failing because you are trying to build OpenMP as a project as part of the LLVM build. My strong recommendation is not to complicate your problematic build process out of the gate. I would recommend you get a vanilla build working first (with clang and lld), before trying to handle projects like backtrace, </span><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">compiler-rt and openmp. And you may want to build them separately anyway, following their respective build processes.</span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"><br></span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">Wrt needing gcc for Git bash, I don't understand why that would be necessary. I don't have it and I use Git bash just fine. I understand that gcc can be made to work on Windows by jumping through some hoops, but it seems like you plan to have three very different toolsets that do essentially the same things: Visual Studio, LLVM w/ clang/lld, and GCC. Personally, that's too complicated for my tastes as there is too much potential for colliding include files in PATHs and such, but you may have your reasons. When I want to play with GCC, I usually just do it on a Linux box.</span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"><br></span></div><div><font color="#000000" face="Calibri, Helvetica, sans-serif"><span style="font-size:16px">You said you use this command:</span></font></div><div><font color="#000000" face="Calibri, Helvetica, sans-serif"><span style="font-size:16px"><br></span></font></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">cmake -G "Visual Studio 15 2017" -Thost=x64 -DLLVM_ENABLE_PROJECTS=clang;</span><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">lld -DLLVM_EXPERIMENTAL_TARGETS_</span><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">TO_BUILD=WebAssembly -DLLVM_TARGETS_TO_BUILD=X86 .</span> </div><div><br></div><div>To build clang and lld, I would think you would need something like this, as I mentioned earlier:</div><div><br></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">cmake -G "Visual Studio 15 2017" -Thost=x64 -D</span>
<span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">CLANG_BUILD_TOOLS -DLLD</span><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">_BUILD_TOOLS</span> <span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"> -DLLVM_EXPERIMENTAL_TARGETS_</span><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">TO_BUILD=WebAssembly -DLLVM_TARGETS_TO_BUILD=X86 .</span> </div><div><br></div><div>Hopefully by using the Git version of the LLVM source and stripping out the irrelevant extra projects, you will get further along ...</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Nov 30, 2018 at 1:43 AM Osman Zakir <<a href="mailto:osmanzakir90@hotmail.com">osmanzakir90@hotmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<span>I probably need GCC for Git bash. And the one I have is MinGW's GCC, which is the one for Windows. I don't know why CMake is trying to find Linux headers. Hopefully someone who knows better what to do will weigh in here. </span></div>
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<div style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:12pt">
<a class="m_5426545586383902656fbmgFYeENi2_gph5O8mp8 m_5426545586383902656mention m_5426545586383902656ms-bgc-nlr m_5426545586383902656ms-fcl-b" id="m_5426545586383902656OWAAM40675" href="mailto:jondgoodwin@gmail.com" target="_blank">@Jonathan Goodwin</a> , are you sure you didn't have to tell it where the header files for Windows are? If I need to specify the paths to those
headers, how do I do it?</div>
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<div id="m_5426545586383902656divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Jonathan Goodwin <<a href="mailto:jondgoodwin@gmail.com" target="_blank">jondgoodwin@gmail.com</a>><br>
<b>Sent:</b> Thursday, November 29, 2018 10:42 AM<br>
<b>To:</b> Osman Zakir<br>
<b>Cc:</b> <a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a><br>
<b>Subject:</b> Re: [llvm-dev] Errors in configuration for LLVM with CMake GUI</font>
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<div dir="ltr">I checked your CMakeError.log again. The .h include files it is marking as missing are not LLVM include files, but are OS-related (e.g., malloc/malloc.h), and in some cases appear to be potentially Linux ones (dlfcn.h, sys/ioctl, malloc_np.h).
I can't imagine why your build might be looking for Linux as opposed to Windows include files. That could be a clue to your problem.
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<div>You said you installed the latest version of GCC before this attempt. This confuses me further, since you are using Visual Studio to build with, and that makes no use of GCC. In fact, honestly I am wondering if your GCC implementation libraries are somehow
in your search path wrt environment variables, and your build is actually trying to use the GNU/Linux header files rather than the VS Windows header files, which would certainly blow it up. Again, I am no expert here, so I don't have a definite answer, but
based on what little I know, this setup doesn't sound safe. Maybe get rid of GCC completely, as I am not sure when/how you would even use it on the Windows side.</div>
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<div>Similarly, I don't believe Perl has anything to do with this either, as neither CMake nor VS make any use of it. But I can't imagine it causing any problems for you to have it.</div>
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<div>I don't know anything about <span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">Backtrace, Libomp, Compiler-RT, so I cannot help you there. As we have discussed before, the source for clang and lld go into the llvm
source folder's "tools" folder by those names. If they are there, after the configure step of the CMake-Gui, options will automatically appear for both clang and lld. You will want to mouse click the checkbox next to CLANG_BUILD_TOOLS and LLD_BUILD_TOOLS prior
to hitting the generate button.</span></div>
<div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"><br>
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<div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">Sorry I don't know more than that, but hopefully that will help some ... and then others can chime in if they know more about this than me.</span></div>
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<div dir="ltr">On Thu, Nov 29, 2018 at 2:52 PM Osman Zakir via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<br>
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<span style="font-size-adjust:none;font-stretch:100%;margin-bottom:0px;margin-top:0px">I tried to configure CMake for LLVM using the GUI and I've attached the logs for the attempt to this message. I installed Perl and the latest version of GCC before that
attempt. There were still errors that stopped it from being able to generate project files, though. </span></div>
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<span style="font-size-adjust:none;font-stretch:100%;margin-bottom:0px;margin-top:0px">I'd like to know how I can get this to work. How do I tell it where to find Backtrace, Libomp, Compiler-RT, LLD and Clang? And where exactly is Backtrace? I copy-pasted
the locations for the stuff I checked out for LLVM, so I'm not really sure where the stuff I need to put into CMake for Compiler-RT, Backtrace and Libomp is (it's where it should be, that's all I know). </span></div>
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