Thanks. I assume there is no way to control this via. environment variables or configure settings? Obviously that would be great for something like this which affects tests and seems to be a known problem for older C standard libraries.
Best, Kasper On Thu, May 4, 2017 at 9:12 AM, Tomas Kalibera <tomas.kalib...@gmail.com> wrote: > > As a quick fix, you can undefine HAVE_CTANH in complex.c, somewhere after > including config.h > An internal substitute, which is implemented inside complex.c, will be > used. > > Best > Tomas > > > > > On 05/04/2017 02:57 PM, Kasper Daniel Hansen wrote: > >> For a while I have been getting that the complex tests fails on RHEL 6. >> The specific issue has to do with tanh (see below for full output from >> complex.Rout.fail). >> >> This is both with the stock compiler (GCC 4.4.7) and a compiler supplied >> through the conda project (GCC 4.8.5). The compiler supplied through >> conda >> ends up linking R to certain system files, so the binary is not completely >> independent (although most dynamically linked libraries are coming from >> the >> conda installation). >> >> A search on R-devel reveals a discussion in April on an issue reported on >> Windows with a bug in tanh in old versions of the GNU C standard library; >> this seems relevant. The discussion by Martin Maechler suggest "using R's >> internal substitute". So how do I enable this? Or does this requires >> updating the C standard library? >> >> ** From complex.Rout.fail >> >> stopifnot(identical(tanh(356+0i), 1+0i)) >>> >> Error: identical(tanh(356 + (0+0i)), 1 + (0+0i)) is not TRUE >> In addition: Warning message: >> In tanh(356 + (0+0i)) : NaNs produced in function "tanh" >> Execution halted >> >> Best, >> Kasper >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel >> > > > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
