It may be that someone has already asked this question, but I am having a problem (= it does not work) installing GHC using macports. Pure vanilla Mac/macports, with a few standard installed packages, but deliberately as few manual interventions as possible. Does the group have any advice? Thanks, Sean Matthews PS this is what macports says: r.packages.macports.org/stack ---> Attempting to fetch stack-2.5.1_0.darwin_20.x86_64.tbz2 from https://cph.dk.packages.macports.org/stack ---> Building stack Error: Failed to build stack: command execution failed Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_stack/stack/main.log for details. Error: Follow https://guide.macports.org/#project.tickets to report a bug. Error: Processing of port ghc failed ---> Some of the ports you installed have notes: pinentry-mac has the following notes: If you previously didn't have pinentry or gpg-agent installed and pinentry-mac has been installed as a dependency of gpg-agent, you don't need to do anything to use pinentry-mac. If you want to switch to the GTK2, ncurses or Qt4 based pinentry program, please install pinentry with the correct use flags and follow the instructions below substituting the pinentry-mac program path with /opt/local/bin/pinentry. If you previously had pinentry and gpg-agent installed and would like to switch to pinentry-mac, you will have to set it as your pinentry program in $HOME/.gnupg/gpg-agent.conf. Add the following line to the mentioned file: pinentry-program /Applications/MacPorts/pinentry-mac.app/Contents/MacOS/pinentry-mac Be sure to comment previous "pinentry-program" lines, for example: pinentry-program SAMPLE becomes #pinentry-program SAMPLE Afterwards, run killall -HUP gpg-agent or simply log out and back in again. -- Sean Matthews seanmatthews1@gmail.com / +49 163 803 1396