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ruby-build(1) -- compile and install Rubies
===========================================
## SYNOPSIS
`ruby-build` [`-v`|`--verbose`] [`-k`|`--keep`] <definition> <prefix><br>
`ruby-build` `--definitions`<br>
`ruby-build` `--version`<br>
`ruby-build` [`-h`|`--help`]<br>
`rbenv install` [`-k`|`--keep`] <definition><br>
## DESCRIPTION
**ruby-build** provides a simple way to compile and install different
versions of Ruby on UNIX-like systems.
`ruby-build` downloads, builds and installs the Ruby version specified
in a <definition> into a <prefix> directory. Definitions can be chosen
from the list of installed definitions or by specifying a file path
for a definition.
rbenv(1) users can also use the provided `rbenv install`
command, which installs Rubies into the `rbenv` directory.
## OPTIONS
* `--definitions`:
List available definitions.
* `-k`, `--keep`:
Don't delete source code after installation.
* `-v`, `--verbose`:
Display compiler messages on standard output.
* `--version`:
Show `ruby-build` version and exit.
* `-h`, `--help`:
Show usage information and exit.
## EXAMPLES
Install Ruby 1.9.3 (MRI, patch level 0) to `~/rubies/mri-1.9.3`
$ ruby-build 1.9.3-p0 ~/rubies/mri-1.9.3
Install Ruby Enterprise Edition 1.8.7 (patch level 2011.03) for rbenv(1):
$ rbenv install ree-1.8.7-2011.03
Install Ruby from a custom definition into `~/your-ruby`:
$ rbenv install /path/to/your/own/ruby/definition ~/your-ruby
## ENVIRONMENT
* `CC`:
Sets the path to the C compiler.
* `CONFIGURE_OPTS`:
Options that are passed to configure when building a Ruby.
* `MAKE_OPTS`:
Options that are passed to make when building a Ruby.
* `MAKEOPTS`:
Used instead of `MAKE_OPTS` when `MAKE_OPTS` is not defined.
* `TMPDIR`:
Sets the location where `ruby-build` stores temporary files.
* `RUBY_BUILD_BUILD_PATH`:
Sets the location in which sources are downloaded and built.
## AUTHORS
ruby-build is developed by Sam Stephenson <<sam@37signals.com>>.
This man page was written for the Debian GNU/Linux distribution by
Sebastian Boehm <<sebastian@sometimesfood.org>> but may be used by
others.
## SEE ALSO
rbenv(1)
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