Beyond Linux® From Scratch (systemd edition) - Version 8.2

Chapter 13. Programming

Ruby-2.5.0

Introduction to Ruby

The Ruby package contains the Ruby development environment. This is useful for object-oriented scripting.

This package is known to build and work properly using an LFS-8.2 platform.

Package Information

  • Download (HTTP): http://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.0.tar.xz

  • Download MD5 sum: e3a98c7b7de49ed5134398367ab3a3bc

  • Download size: 11 MB

  • Estimated disk space required: 361 MB, with checks (add 206 MB for C API docs)

  • Estimated build time: 1.3 SBU (using parallelism=4; add 3.7 SBU for tests; add 0.4 SBU for C API docs)

Ruby Dependencies

Optional

Berkeley DB-6.2.32, Doxygen-1.8.14, Graphviz-2.40.1, Tk-8.6.8, Valgrind-3.13.0, and YAML-0.1.7

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/ruby

Installation of Ruby

Install Ruby by running the following command: 

./configure --prefix=/usr   \
            --enable-shared \
            --docdir=/usr/share/doc/ruby-2.5.0 &&
make

Optionally, build the CAPI documents by running the following commands: 

make capi

To test the results, issue: make check. There are 17327 tests. A few (about 3) fail and one test may hang, but the test process can continue with ctrl-C. If the tests are run in a directory that has a world writable component (e.g /tmp) then several additional tests fail and the tests terminate after 25 failures.

Now, as the root user: 

make install

Command Explanations

--enable-shared: This switch enables building of the libruby shared library.

--disable-install-doc: This switch disables building and installing rdoc indexes and C API documents.

--disable-install-rdoc: This switch disables building and installing rdoc indexes.

--disable-install-capi: This switch disables building and installing C API documents.

Contents

Installed Programs: erb, gem, irb, rake, rdoc, ri, and ruby
Installed Libraries: libruby.so and libruby-static.a
Installed Directories: /usr/include/ruby-2.5.0 /usr/lib/ruby, /usr/share/doc/ruby-2.5.0 and /usr/share/ri

Short Descriptions

erb

is Tiny eRuby. It interprets a Ruby code embedded text file.

gem

command for RubyGems - a sophisticated package manager for Ruby.

irb

is the interactive interface for Ruby.

rake

a make-like build utility for Ruby.

rdoc

generates Ruby documentation.

ri

displays documentation from a database on Ruby classes, modules, and methods.

ruby

is an interpreted scripting language for quick and easy object-oriented programming.

libruby.so

contains the API functions required by Ruby.

Last updated on 2018-02-21 15:57:03 -0800