Install Ruby Headers with Rvm

Install ruby headers with rvm

you are checking in wrong location, check with:

$ find /home/mpapis/.rvm/rubies/ruby-1.9.3-p194/ -name ruby.h
/home/mpapis/.rvm/rubies/ruby-1.9.3-p194/include/ruby-1.9.1/ruby/ruby.h
/home/mpapis/.rvm/rubies/ruby-1.9.3-p194/include/ruby-1.9.1/ruby.h

bundle install using wrong ruby with rvm when building native extension?

I was using the wrong bundle.

$ which bundle
/usr/bin/bundle

Either the one included in Ubuntu 16.04 is old, or using the system-installed bundler doesn't work with rvm-installed Ruby.

$ gem install bundler
Fetching: bundler-1.16.1.gem (100%)
...
1 gem installed
$ which bundle
/home/roger/.rvm/gems/ruby-2.3.4@junk-drawer/bin/bundle

That looks better.

$ bundle
Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...
Using bundler 1.16.1
...
Bundle complete! 1 Gemfile dependency, 9 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.

Lesson learned: when using rvm, remember to gem install bundler as well.

Error while installing json gem 'mkmf.rb can't find header files for ruby'

Modern era update, as stated by mimoralea:

In case that you are using ruby 2.0 or 2.2 (thanks @patrick-davey).

sudo apt-get install ruby2.0-dev
sudo apt-get install ruby2.2-dev
sudo apt-get install ruby2.3-dev

or, generic way:

sudo apt-get install ruby-dev

or

sudo apt-get install ruby`ruby -e 'puts RUBY_VERSION[/\d+\.\d+/]'`-dev

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The first link you’ve posted is exactly your case: there is no ruby development environment installed. Development env is needed to compile ruby extensions, which are mostly written in C. Proxy has nothing to do with the problem: everything is downloaded fine, just compilation fails.

I would suggest you to install ruby-dev (ruby-devel for rpm-based distros) package onto you target machine.

gcc package might be needed as well.

Try:

$ sudo apt-get install ruby-dev

Or, for Redhat distro:

$ sudo yum install ruby-devel

Or, for [open]SuSE:

$ sudo zypper install ruby-devel

rvm install ree fails on ubuntu: how to get pass openssl and zlib dev headers requirement?

If you use rvm version 1.9.0,

$ rvm package install ree_dependencies
ERROR: Unrecognized command line argument: 'package' ( see: 'rvm usage' )

Using

$ rvm pkg install ree_dependencies

will work

Cannot install passenger due to Ruby development headers not found

have you tried:

rvm get head
rvm reload
gem install passenger
rvmsudo passenger-install-nginx-module

How to install ruby-debug when needing necessary libraries and/or headers

The error is in the mkmf.log file. That file should be located at /home/hxh/.rvm/gems/ruby-1.9.3-p448/gems/linecache-0.46/ext/linecache/mkmf.log.

If not, you can use

sudo find / -name mkmf.log

to find it.

To troubleshoot further, see "How to install Nokogiri Ruby gem with mkmf.log saying libiconv not found?"

Can't find header files for Ruby on SUSE?

For those with similar issues I got this working by.

Uninsalling ruby and rvm
Building zlib from source with the shared option

./configure --shared
make 
make install

I did the same for Ruby and that worked.

I could not get any RPM, Zypper, RVM installers to install properly. In each case they all seemed to have issues with zlib ?

Executable Ruby Scripts Using the Current Local User RVM Install?

If you do which ruby, you'll find that RVM's ruby does not lie at /usr/bin/ruby. Instead use:

#!/usr/bin/env ruby

This will tell it to look up which ruby to use in the current environment (essentially the $PATH).

You could also execute your script via ruby itself: ruby myscript.rb

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