[llvm-dev] Problems trying to build LLVM (original) (raw)
Tom Stellard via llvm-dev llvm-dev at lists.llvm.org
Tue Jan 8 22:44:31 PST 2019
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On 01/08/2019 08:34 PM, Jack Orenstein via llvm-dev wrote:
Hi, I am brand new to LLVM, or more precisely, trying to be. I'm getting stuck on compiling LLVM.
- I tried installing on a Mint 18.1 VM with 6GB RAM, and the builds of some large executables were killed by the OOM killer. I finally realized that I needed to build using shared libraries, and succeeded. This was in November. - I put aside my LLVM project, and just got back to it. I got stuck compiling the Kaleidoscope demo, encountering this error: /tmp/kal-2072b8.o:(.data.ZN4llvm30VerifyDisableABIBreakingChecksE+0x0): undefined reference to `llvm::DisableABIBreakingChecks' This discussion, from this mailing list, points out that I need to build LLVM with -DLLVMDISABLEABIBREAKINGCHECKSENFORCING=OFF. - So now I am trying to rebuild LLVM, and ran into a few new problems. First, I discovered that I need the Z3 theorem prover. Unsure why this problem did not show up before. Second, I'm running into many errors like this: CMake Error at cmake/modules/AddLLVM.cmake:570 (targetlinklibraries): Attempt to add link library "clangAST" to target "clangApplyReplacements" which is not built in this directory. Call Stack (most recent call first): tools/clang/cmake/modules/AddClang.cmake:86 (llvmaddlibrary) tools/extra/clang-apply-replacements/CMakeLists.txt:5 (addclanglibrary) Getting LLVM installed is proving much more problematic than I was expecting, based on experience with many other open source projects. Can someone give me a push in the right direction? I started with this document: http://llvm.org/docs/GettingStarted.html, but found no guidance about the problems with huge executables, advice about shared libraries, etc. Hi,
I would recommend doing a clean build (i.e. delete your current build directory or use a new one) of llvm and then post the cmake options you used if you still have issues even with a clean build.
-Tom
Thanks.
Jack Orenstein
LLVM Developers mailing list llvm-dev at lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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