<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Hi Nelson,</div><div class=""><br class=""></div><div class="">Thanks for your reply. </div><div class=""><br class=""></div><div class="">The “build/Debug/lib” and "build/Release/lib” directories is where all the libraries go. Similarly, the executables go to “build/Debug/bin” and “build/Release/bin” before they are moved to the install directory. This is expected and normal. However, the problem is that a small number of libraries (exactly 20 in total) are not created at all for the LLVM 9.0 version that I cloned from gitHub. These libraries are in fact not created anywhere!.</div><div class=""><br class=""></div><div class="">I still have LLVM 7.0 installed in my computer and the libraries for that version are all there in the right places under the LLMV 7.0 directory, but in that case I installed it all in a different way as I said, loosing the benefits of git.</div><div class=""><br class=""></div><div class="">I forgot to mention that “llc” alone compiles and links correctly without any issue. The problem is only when I try to get ‘clang’ compiled.</div><div class=""><br class=""></div><div class="">You mention that you enabled a lot of projects: "clang;clang-tools-extra;compiler-rt;debuginfo-tests;libclc;libcxx;libcxxabi;libunwind;lld;lldb;llvm;openmp;parallel-libs;polly;pstl”. I only really need the basic installation of “clang”, and I do not need any testing tools because all I want is to add my custom target to it. I also tried "clang;libclc;libcxx” but the problem with the missing libraries is exactly the same.</div><div class=""><br class=""></div><div class="">Just as a matter of information: I successfully implemented a custom target backend, and have it almost finished and running perfectly on LLVM 7.0. Now, I just want to move it to LLVM 9.0, but got stuck in what is supposed to be the easiest part which is just compiling it (??), but I do not understand why it doesn’t compile!</div><div class=""><br class=""></div><div class="">Any ideas?</div><div class=""><br class=""></div><div class="">Joan</div><div class=""><br class=""></div><br class=""><blockquote type="cite" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class=""><font size="-1" class="">John, I compiled and installed to /usr/local all the projects under llvm except llgo yesterday. The three files you noted are in</font></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><font size="-1" class="">../llvm-project/build/lib<br class=""></font></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><font size="-1" class="">I do not have a llvm-project/build/Debug directory.</font></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><font size="-1" class="">Xubuntu 19.04. llvm downloaded from github on 6/18 using instructions from the page you note.</font></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><font size="-1" class="">cmake -G Ninja -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra;compiler-rt;debuginfo-tests;libclc;libcxx;libcxxabi;libunwind;lld;lldb;llvm;openmp;parallel-libs;polly;pstl" -DLLVM_USE_LINKER=lld -DCMAKE_BUILD_TYPE="Release" ../llvm</font></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><font size="-1" class="">Installed additional packages as needed.<br class=""></font></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><font size="-1" class="">Neil<br class=""></font></div><div class="moz-cite-prefix"><font size="-1" class="">On 7/5/19 6:46 AM, Joan Lluch via llvm-dev wrote:<br class=""></font></div><blockquote type="cite" cite="mid:87EE0948-7275-4451-AE4D-71F599E6CC3A@icloud.com" class=""><div dir="auto" class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><font size="-1" class="">Hi All,</font><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">I am looking for the best way to install LLVM+clang, but I do not seem to find a way that works for me.</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">I followed the steps in this document <a href="https://llvm.org/docs/GettingStarted.html" class="" moz-do-not-send="true">Getting Started with the LLVM System — LLVM 9 documentation</a> except that I created the following folder structure as I do not want clang and llc to go to /usr/local</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">LLVM-9</font></div><div class=""><font size="-1" class=""> llvm-project (cloned from github)</font></div><div class=""><font size="-1" class=""> install</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">I ran the following command line from the build directory in llvm-project as described in the doc, but added the DLLVM_OPTIMIZED_TABLEGEN=On variable :</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><div class="" style="margin: 0px; font-size: 10px; line-height: normal; font-family: Monaco; background-color: rgb(255, 255, 255);"><font size="-1" class=""><span class="" style="font-variant-ligatures: no-common-ligatures;">cmake -G Xcode -DLLVM_ENABLE_PROJECTS=clang -DCMAKE_INSTALL_PREFIX=/Users/joan/LLVM-9/install -DLLVM_OPTIMIZED_TABLEGEN=On ../llvm</span></font></div></div><div class="" style="margin: 0px; font-size: 10px; line-height: normal; font-family: Monaco; background-color: rgb(255, 255, 255);"><font size="-1" class=""><br class=""></font></div><div class="" style="margin: 0px; line-height: normal; background-color: rgb(255, 255, 255);"><font size="-1" class="">The cmake command above seems to work ok, but after that, when I compile the “install” or “build_all” schemes I get a lot of linker errors. Such as these ones and more:</font></div><div class="" style="margin: 0px; line-height: normal; background-color: rgb(255, 255, 255);"><font size="-1" class=""><br class=""></font></div><div class="" style="margin: 0px; line-height: normal; background-color: rgb(255, 255, 255);"><div class="" style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;"><font size="-1" class="">clang: error: no such file or directory: '/Users/joan/LLVM-9/llvm-project/build/Debug/lib/libclangAST.a'</font></div><div class="" style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;"><font size="-1" class="">clang: error: no such file or directory: '/Users/joan/LLVM-9/llvm-project/build/Debug/lib/libclangLex.a'</font></div><div class="" style="margin: 0px 0px 0px 12px; text-indent: -12px; font-size: 11px; line-height: normal; font-family: Menlo;"><font size="-1" class="">clang: error: no such file or directory: '/Users/joan/LLVM-9/llvm-project/build/Debug/lib/libclangBasic.a'</font></div></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">Up until recently, I have worked with LLVM 7.0 and all what I did was downloading both llvm and clang from <a href="http://llvm.org" class="" moz-do-not-send="true">llvm.org</a>, copied clang into llvm/tools, and ran the cmake application (not command line). That kind of worked except for some minor glitches but of course I didn’t get the benefits of git.</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">So what am I doing wrong now? Why I’m getting such linker errors?</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">It seems that a few required libraries are not created, but I do not understand why. Any ideas?</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">Thanks,</font></div><div class=""><font size="-1" class=""><br class=""></font></div><div class=""><font size="-1" class="">John</font></div></div></blockquote></blockquote><div class=""><div dir="auto" class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class=""><font size="-1" class=""><br class=""></font></div></div></div></body></html>