hubutui commented on issue #15294: mkldnn is not properly installed URL: https://github.com/apache/incubator-mxnet/issues/15294#issuecomment-505253811 I use the [PKGBUILD](https://github.com/archlinuxcn/repo/blob/master/archlinuxcn/mxnet/PKGBUILD) to build mxnet in a archroot environment days ago, so the build dir is deleted automatically. But here is the complete build log for these for package (mxnet, mxnet-mkl, mxnet-cuda, mxnet-cuda-mkl). Note that in the build log, I use gcc 8 instead of clang. To reproduce: 1. a archlinux environment with [Arch Linux Chinese Community Repository](https://github.com/archlinuxcn/repo) 2. install `devtools-cn-git` which is available in ArchLinuxCN repo 3. Download the PKGBUILD to `mxnet` 4. `cd mxnet`, and then `archlinuxcn-x86_64-build -- -- --nocheck`. It would take up to 2 hours for building mxnet. [mxnet-1.5.0.rc1-5-x86_64-package_mxnet-mkl.log](https://github.com/apache/incubator-mxnet/files/3323279/mxnet-1.5.0.rc1-5-x86_64-package_mxnet-mkl.log) [mxnet-1.5.0.rc1-5-x86_64-prepare.log](https://github.com/apache/incubator-mxnet/files/3323280/mxnet-1.5.0.rc1-5-x86_64-prepare.log) [mxnet-1.5.0.rc1-5-x86_64-build.log](https://github.com/apache/incubator-mxnet/files/3323275/mxnet-1.5.0.rc1-5-x86_64-build.log) [mxnet-1.5.0.rc1-5-x86_64-package_mxnet.log](https://github.com/apache/incubator-mxnet/files/3323276/mxnet-1.5.0.rc1-5-x86_64-package_mxnet.log) [mxnet-1.5.0.rc1-5-x86_64-package_mxnet-cuda.log](https://github.com/apache/incubator-mxnet/files/3323277/mxnet-1.5.0.rc1-5-x86_64-package_mxnet-cuda.log) [mxnet-1.5.0.rc1-5-x86_64-package_mxnet-cuda-mkl.log](https://github.com/apache/incubator-mxnet/files/3323278/mxnet-1.5.0.rc1-5-x86_64-package_mxnet-cuda-mkl.log)
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