Geek Answers Handbook

Installing Ruby / GSL in a Heroku Application

Context:

  • I have an application that actively uses the GSL library and its Ruby bindings.
  • I would like to deploy the application to Heroku. I am very new to programming in general, much smaller, and Heroku is very easy to use, especially for Rails applications.
  • I have a GSL installed on my laptop. I am using gsl gem.

Problem:

  • Pearl requires that the GSL library is already installed.
  • GSL is not yet installed in the Heroku environment.

  • So, no wonder I get this error from Heroku after I git push heroku master

    -----> Heroku receiving push
-----> Removing .DS_Store files
-----> Ruby/Rails app detected
-----> Installing dependencies using Bundler version 1.2.0.rc
       Running: bundle install --without development:test --path vendor/bundle --binstubs bin/ --deployment

...
Installing gsl (1.14.7) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb
checking gsl version... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
extconf.rb:237:in `rescue in <main>': Check GSL>=0.9.4 is installed, and the command "gsl-config" is in search path. (RuntimeError)
from extconf.rb:138:in `<main>'

Solution (possibly):

  • Heroku builds seem to be a likely route. This (binary binary package dependency) seems promising.
  • I just don’t understand what is happening in the textbook, or how to use volcanoes.

:

  • , GSL Heroku.

!

0
1

( , ruby-gsl ?) ( , , , , ), , , :

heroku-buildpack-gsl-ruby

, , ;)

gsl 1.15, .

- : package_nodejs gsl (. readme). , , (/, , DRY).

+1

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