If you refer to the official Ruby installation documentation, you'll see that there are 4 choices: Therefore, even if your system comes with Ruby, you should install a separate version of Ruby. Some system Ruby installations, especially on Mac, have limited permissions and will impede your ability to install gems, upgrade Ruby, and perform other development tasks. You should see a print out of the version of Ruby that is installed on your machine. Go to your command line or terminal application and enter ruby -v. If you are working on a Mac or Linux machine, you may have Ruby installed already. If you cannot, a more recent version will probably give you the least trouble. You may experience some issues with other versions, so install 3.2.0 if you can. We recommend Ruby 3.2.0 as the best choice. We recommend that you use Ruby version 3.0.x, 3.1.x, or 3.2.x. This is to ensure the packages that depend on Ruby will have an interpreter with which to run.For the purposes of this book, you'll need to have Ruby and RubyGems installed on your machine. A newer implementation of Ruby will need to be installed before an older implementation can be removed. To remove an old implementation, in this case Ruby 2.4, first be certain Ruby has been updated (see the Adding a new implementation section). To fix the issue, add the target(s) displayed above into the RUBY_TARGETS variable in Portage's /etc/portage/nf file and re-run previously failed emerge command. * die 'No compatible Ruby target selected.' * environment, line 3224: Called _ruby_each_implementation '_ruby_source_copy' * environment, line 3475: Called ruby-ng_src_prepare * ebuild.sh, line 127: Called src_prepare * ERROR: app-misc/hivex-1.3.20::gentoo failed (prepare phase): * Compatible targets for this package are: ruby26 * You need to select at least one compatible Ruby installation target via RUBY_TARGETS in nf. Safe to use even if not currently using dev-util/valgrind Install dev-ruby/rdoc after installing Ruby.Īdd support for SSL/TLS connections (Secure Socket Layer / Transport Layer Security)īuild static versions of dynamic libraries as wellĮnable annotations for accuracy.

May prevent use of some PaX memory protection features in Gentoo Hardened. Use dev-libs/jemalloc for memory managementĮnable just-in-time compilation for improved performance. It is recommended to enable per package instead of globallyĪdd support for sys-libs/gdbm (GNU database libraries) If you want to get meaningful backtraces see Īdd extra documentation (API, Javadoc, etc). Add support for sys-libs/db (Berkeley DB for MySQL)Įnable extra debug codepaths, like asserts and extra output.

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