[R-pkg-devel] Warning of DDRTree

[Kevin Ushey]

You can try placing this in your src/Makevars[.win] file:

    CXXFLAGS = -DBOOST_NO_LONG_LONG

The dplyr package does this (and more) to avoid 'long long' leaking in
from Boost headers. See e.g.

https://github.com/tidyverse/dplyr/blob/ff719f53f88f2f03a298fa0ea489b902527ee2f1/src/Makevars#L2

The other alternative would be to just enforce the use of C++11 in
your package, by adding e.g.

    SystemRequirements: C++11

to your DESCRIPTION file, or

    CXX_STD = CXX11

to your src/Makevars[.win]. See
https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Using-C_002b_002b11-code
for more information.

Best,
Kevin

On Thu, Apr 13, 2017 at 6:49 PM, Xiaojie Qiu <xqiu at uw.edu> wrote:
>
> We are planning to update the DDRTree package but found the following
> warnings:
>
>   d:/RCompile/CRANpkg/lib/3.4/BH/include/boost/unordered/detail/buckets.hpp:586:29:
> warning: ISO C++ 1998 does not support 'long long' [-Wlong-long]
>   d:/RCompile/CRANpkg/lib/3.4/BH/include/boost/unordered/detail/buckets.hpp:591:38:
> warning: ISO C++ 1998 does not support 'long long' [-Wlong-long]
>
>  Those warnings seem to relate to boost but not to our package. Can anyone
> have some idea on how to fix this?
> The check log is here:
> https://win-builder.r-project.org/incoming_pretest/170414_025235_DDRTree_015/00check.log
> The windows install log is here:
> https://win-builder.r-project.org/incoming_pretest/170414_025235_DDRTree_015/00install.out
>
> Thanks in advance!
>
> Best,
> Xiaojie
>
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>
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