Excellent, thank you all. Doing "pacman -Syu" before "pacman -S gdb...." did the trick, and yes it's a different version of gdb compared to what pacman was previously trying to install. Might be worth updating the RTOOLS40 documentation to recommend doing -Syu first.
Jeroen's documentation says to do the pacman bit from mingw64, and separately from mingw32--- whereas Avraham's suggestion is to do it just from msys2. I actually did both; gdb seems to end up in the same place regardless, but tomorrow I'll find out if it's *really* worked... Thanks Mark Mark Bravington CSIRO Marine Lab Hobart Australia ________________________________________ From: Avraham Adler <avraham.ad...@gmail.com> Sent: Thursday, 15 April 2021 17:09 To: Voeten, C.C. Cc: Bravington, Mark (Data61, Hobart); R-Devel-2 Subject: Re: [Rd] problem adding gdb to RTOOLS40 on Windows Also, packages should be installed in the MSYS2 environment and not the MINGW64. Invoke msys2.exe, synchronize with Jeroen’s via the pacman -Syu, and then try the install. It should work as Jeroen has gdb in the upstream repository [ https://github.com/r-windows/rtools-packages/tree/master/mingw-w64-gdb] Thanks, Avi On Thu, Apr 15, 2021 at 2:59 AM Voeten, C.C. <c.c.voe...@hum.leidenuniv.nl<mailto:c.c.voe...@hum.leidenuniv.nl>> wrote: Hi Mark, Try pacman -Suy first to update pacman's package database. It's quite possible that the versions pacman is trying to install are no longer available due to being out of date. HTH, Cesko -----Original Message----- From: R-devel <r-devel-boun...@r-project.org<mailto:r-devel-boun...@r-project.org>> On Behalf Of Bravington, Mark (Data61, Hobart) Sent: Thursday, April 15, 2021 6:53 AM To: R-Devel-2 <r-devel@r-project.org<mailto:r-devel@r-project.org>> Subject: [Rd] problem adding gdb to RTOOLS40 on Windows I've not been able to install gdb for RTOOLS40 on Windows 10. The rtools installer (rtools40-x64_86.exe) doesn't seem to include gdb by default, and when I follow the instructions for adding gdb (which I tracked down at https://github.com/r-windows/docs/blob/master/faq.md) this is what happened: <cd to c:\rtools\rtools40> <run mingw64.exe> $ pacman -S mingw-w64-x86_64-gdb resolving dependencies... looking for conflicting packages... Packages (8) mingw-w64-x86_64-expat-2.2.9-9002 mingw-w64-x86_64-gettext-0.19.8.1-9002 mingw-w64-x86_64-libsystre-1.0.1-9002 mingw-w64-x86_64-libtre-git-r128.6fb7206-9002 mingw-w64-x86_64-ncurses-6.1.20180526-9002 mingw-w64-x86_64-readline-8.0.001-2 mingw-w64-x86_64-termcap-1.3.1-9002 mingw-w64-x86_64-gdb-8.3.1-9500 Total Download Size: 3.46 MiB Total Installed Size: 83.77 MiB :: Proceed with installation? [Y/n] y :: Retrieving packages... error: failed retrieving file 'mingw-w64-x86_64-gdb-8.3.1-9500-any.pkg.tar.xz' from cloud.r-project.org<http://cloud.r-project.org> : The requested URL returned error: 404 error: failed retrieving file 'mingw-w64-x86_64-gdb-8.3.1-9500-any.pkg.tar.xz' from cran.r-project.org<http://cran.r-project.org> : The requested URL returned error: 404 error: failed retrieving file 'mingw-w64-x86_64-gdb-8.3.1-9500-any.pkg.tar.xz' from dl.bintray.com<http://dl.bintray.com> : The requested URL returned error: 404 warning: failed to retrieve some files error: failed to commit transaction (failed to retrieve some files) Errors occurred, no packages were upgraded. Something very similar happens if I try the 32bit version. Do you have any suggestions? - I used to have this stuff working OK with R3.6/RTOOLS35 but have not needed to go back to C for a while. The version of gdb in RTOOLS is 7.9.1; I tried copying that gdb.exe into RTOOLS40 but it just exited instantly when I tried to run it from there. - NB I have absolutely no idea what is meant by msys2 or pacman or any of that, I'm just following instructions... Thanks Mark Mark Bravington CSIRO Marine Lab Hobart Australia ______________________________________________ R-devel@r-project.org<mailto:R-devel@r-project.org> mailing list https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org<mailto:R-devel@r-project.org> mailing list https://stat.ethz.ch/mailman/listinfo/r-devel -- Sent from Gmail Mobile ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel