[GitHub] [incubator-mxnet] hetong007 edited a comment on issue #18985: unable to build r packge

[GitBox <gi...@apache.org>]

hetong007 edited a comment on issue #18985:
URL: https://github.com/apache/incubator-mxnet/issues/18985#issuecomment-682419310


   I did the following on my Ubuntu to install the CPU-version MXNet, could you please help to follow and verify:
   
   First, clone MXNet by `git clone --recursive https://github.com/apache/incubator-mxnet.git -b 1.6.0`.
   
   Then, Compile with `cmake`:
   
   ```sh
   cd $MXNET_ROOT # go into your cloned repo
   mkdir build && cd build
   cmake -DUSE_CUDA=OFF ..
   make -j16
   ```
   
   I believe you have been here already. So the R part is the following.
   
   I have to modify two files first, please see the diff info below:
   
   ```diff
   diff --git a/Makefile b/Makefile
   index 4746cc434..0ec177232 100644
   --- a/Makefile
   +++ b/Makefile
   @@ -707,6 +707,7 @@ rpkg:
           R CMD INSTALL R-package
           Rscript -e "require(mxnet); mxnet:::mxnet.export('R-package'); warnings()"
           rm R-package/NAMESPACE
   +       touch R-package/NAMESPACE
           Rscript -e "devtools::document('R-package');warnings()"
           R CMD INSTALL R-package
   
   diff --git a/R-package/R/zzz.R b/R-package/R/zzz.R
   index a4f03ace0..1a421f1d4 100644
   --- a/R-package/R/zzz.R
   +++ b/R-package/R/zzz.R
   @@ -34,6 +34,7 @@ NULL
    .onLoad <- function(libname, pkgname) {
      # Require methods for older versions of R
      require(methods)
   +  require(Rcpp)
      tryCatch(library.dynam("libmxnet", pkgname, libname, local=FALSE), error = function(e) { print('Loading local: inst/libs/libmxnet.so'); dyn.load("R-package/inst/libs/libmxnet.so", local=FALSE) })
      tryCatch(library.dynam("mxnet", pkgname, libname), error = function(e) { print('Loading local: src/mxnet.so'); dyn.load("R-package/src/mxnet.so") })
      loadModule("mxnet", TRUE)
   ```
   
   Finally, under your $MXNET_ROOT, run `make rpkg`.


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