Dirk Eddelbuettel <e...@debian.org> writes: > On 31 July 2017 at 19:38, Joseph Mingrone wrote: > | This happens when attempting to install any package. There were no such > | problems on 11.0. > | > | Some other ways to trigger the problem: > [...] > | trying URL 'https://cloud.r-project.org/src/contrib/Rcpp_0.12.12.tar.gz' > | [New LWP 100854 of process 56011] > | > | Thread 7 received signal SIGSEGV, Segmentation fault. > | [Switching to LWP 100854 of process 56011] > | uw_frame_state_for (context=context@entry=0x7fffdfffde20, > fs=fs@entry=0x7fffdfffdb70) > | at /usr/ports/lang/gcc5/work/gcc-5.4.0/libgcc/unwind-dw2.c:1249 > | 1249 return MD_FALLBACK_FRAME_STATE_FOR (context, fs);
> Looks like a gcc error to me. Rcpp itself is pretty widely used and tested > and I am not aware of it having issue per se on any of the *BSDs. The problem isn't specific to any package or packages in general, but seems related to libcurl and/or gfortran. The third call to CURLcode ret = curl_easy_perform(hnd); in in_do_curlGetHeaders() from src/modules/internet/libcurl.c triggers the problem _unless_ R is built with flang instead of gfortran. For FreeBSD 11.1 R users, there are two workarounds [1]. 1) Build the FreeBSD R package with the FLANG option instead of GFORTRAN. FLANG may be the default soon. 2) Add options(download.file.method="wget") to ~/.Rprofile with a newline after it. Ensure ftp/wget is installed, because it is not pulled in by math/R. Joseph [1] Both these workarounds prevent a predictable crash, but have only been lightly tested.
signature.asc
Description: PGP signature
______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
