ng0 writes: > * gnu/packages/ruby.scm (ruby-notmuch): New variable. I tried building this, but get some linker errors. /tmp/guix-build-ruby-notmuch-0.23.5.drv-0/notmuch-0.23.5/bindings/ruby/database.c:105: undefined reference to `rb_ensure' database.o: In function `notmuch_rb_database_path': /tmp/guix-build-ruby-notmuch-0.23.5.drv-0/notmuch-0.23.5/bindings/ruby/database.c:139: undefined reference to `rb_str_new_cstr' database.o: In function `notmuch_rb_database_get_all_tags': /tmp/guix-build-ruby-notmuch-0.23.5.drv-0/notmuch-0.23.5/bindings/ruby/database.c:398: undefined reference to `rb_data_object_wrap' collect2: error: ld returned 1 exit status