Problems installing gsl gem

Question

I can succesfully install the gsl library in my home directory, but when I try to install the gsl gem I get a big list of errors that I do not understand. I am wondering if

Answer 1

On my fresh install of Mac OS X Yosemite, I needed specifically 1.15.3, and homebrew can't get that for me (there is no brew install gsl115)

curl ftp://ftp.gnu.org/gnu/gsl/gsl-1.15.tar.gz > gsl-1.15.tar.gz
tar xvzf gsl-1.15.tar.gz
cd gsl-1.15
./configure
make
sudo make install
gem install gsl

Answer 2

For anyone still struggling to install this with the gsl_matrix_complex_equal issue.

If you have run brew install gsl which will as of this writing install 1.15 and then attempted to install the ruby bindings, you will potentially run into this problem.

Using this repo as your rb-gsl gem source solves the issue: https://github.com/30robots/rb-gsl

However, if you have a newer version of rubygems, that repo makes a call to Gem#searcher which is a deprecated and now removed method.

My repo updates that call to use the Gem::Specification API:

https://github.com/whistlerbrk/rb-gsl

So in short:

brew install gsl on OSX

and in your Gemfile:

gem 'gsl', :git => 'git://github.com/whistlerbrk/rb-gsl.git'

Answer 3

lsb_release -a Ubuntu 14.04.1 LTS
ruby --version ruby 2.1.2p95

---

Important: Install gsl development package (https://askubuntu.com/a/490475/121418)
sudo apt-get install libgsl0-dev

Add this line in Gemfile
gem 'rb-gsl'

Install gem via Terminal
bundle install

---

Verify
bundle show rb-gsl
/.rvm/gems/ruby-2.1.2/gems/rb-gsl-1.16.0.4

gsl-config --version
1.15

---

Use require "gsl" in ruby file if necessary

Answer 4

For ubuntu 13.10, ruby 2.0.0 works fine next-

curl -O http://ftp.unicamp.br/pub/gnu/gsl/gsl-1.16.tar.gz
tar xvzf gsl-1.16.tar.gz
cd gsl-1.16
./configure
make
sudo make install
sudo gem install --conservative --no-ri --no-rdoc gsl

Attention: Ami Navon wrote-

Must install older version 1.14 for ruby/gsl to work

It is not actual now for gsl-1.16/ruby-2.0.0