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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/01/13 14:46:43 UTC
[GitHub] [incubator-mxnet] leezu opened a new issue #17282: R-package
requires OpenCV
leezu opened a new issue #17282: R-package requires OpenCV
URL: https://github.com/apache/incubator-mxnet/issues/17282
## Description
In https://github.com/apache/incubator-mxnet/issues/7273 https://github.com/apache/incubator-mxnet/pull/7389 a mandatory dependency on OpenCV was added to the r package. This breaks the r-package on systems without OpenCV https://github.com/apache/incubator-mxnet/issues/7273#issuecomment-332223197).
Further, the link command is not set up correctly so that the Rcpp `mxnet.so` does not link to opencv, causing undefined symbols.
@thirdwing do you plan to fix this or #7389 be reverted?
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[GitHub] [incubator-mxnet] leezu commented on issue #17282: R-package
requires OpenCV
Posted by GitBox <gi...@apache.org>.
leezu commented on issue #17282: R-package requires OpenCV
URL: https://github.com/apache/incubator-mxnet/issues/17282#issuecomment-573774208
The linking issue will be fixed as part of https://github.com/apache/incubator-mxnet/pull/17228
Makevars was missing the following entries:
```
CXX_STD = CXX11
PKG_LIBS = $(LAPACK_LIBS) $(BLAS_LIBS) `pkg-config --libs opencv`
PKG_CFLAGS = `pkg-config --cflags opencv`
PKG_CPPFLAGS = -I../inst/include `pkg-config --cflags opencv` `Rscript -e 'Rcpp:::CxxFlags()'`
```
The problem of making the OpenCV dependency required instead of optional remains.
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