Compilation failed error about dynamichazard HOT 6 OPEN

Oh and I forgot to mention that I do not think it is C++11 which is the issue but rather OpenMP.

from dynamichazard.

The build error seems to be related to the user defined reduction using OpenMP. I think this was first added in OpenMP 4.0 so perhaps you do not have a recent enough version of OpenMP?

If this is true, then you can try to download the source and remove $(SHLIB_OPENMP_CXXFLAGS) from these lines:

which should remove the -fopenmp flag. The downside is that you cannot do computation in parallel. Alternatively, do you have a more recent compiler you can use?

from dynamichazard.

Thanks for the reply.

unfortunately my hands are limited in installing a lot of stuff in the box I am given. I might have a chance to upgrade gcc. Which version of gcc is compatible with c++11 and this library? https://gcc.gnu.org/releases.html

Alternatively I'd still think having a binary compiled version available is a good to have?

from dynamichazard.

I might have a chance to upgrade gcc. Which version of gcc is compatible with c++11 and this library? https://gcc.gnu.org/releases.html

I know that the package used to build with Rtools35.exe which seems to have been based on GCC 4.9.3 and Mingw-w64 v3. From https://gcc.gnu.org/wiki/openmp, it seems like GCC 4.9 supports OpenMP 4.0 which would explain the issues you are seeing with GCC 4.8.5 and why it used to work with the old Rtools.

Alternatively I'd still think having a binary compiled version available is a good to have?

To be honest, I have never tried to build and distribute the binary myself. I am not sure if I will have the time to do this anytime soon.

from dynamichazard.

Say I 'd be able to install the second version of GCC. Is there an easy way to point to a specific binary when installing dynamichazard?

from dynamichazard.

You can use the CC, CXX, CXX11, and FC flags in your ~/.R/Makevars file. E.g., I have

CC=gcc-10
CXX=g++-10 
CXX11=g++-10
FC=gfortran-10

See https://cran.r-project.org/doc/manuals/r-release/R-admin.html#Customizing-package-compilation for details. You can check that you have set this up correctly by running e.g. R CMD config CXX11 which gives me g++-10.

You can also have the Makevars file at some other location using the R_MAKEVARS_USER environment variable. For instance,

echo "CXX=some/path/g++" >> /tmp/Makevars
export R_MAKEVARS_USER=/tmp/Makevars
R CMD config CXX
#> some/path/g++

from dynamichazard.