如何在Heroku上安装ffi

Question

今天开始我们的Heroku部署.

   Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

   /tmp/build_6e4275c6-8442-4a39-9175-f20505baf383/vendor/ruby-2.0.0/bin/ruby extconf.rb
   checking for ffi.h... no
   checking for ffi.h in /usr/local/include,/usr/include/ffi... no
   checking for rb_thread_blocking_region()... yes
   checking for rb_thread_call_with_gvl()... yes
   checking for rb_thread_call_without_gvl()... yes
   checking for ffi_prep_cif_var()... no
   creating extconf.h
   creating Makefile

   make "DESTDIR="
   Configuring libffi
   make -C "/tmp/build_6e4275c6-8442-4a39-9175-f20505baf383/vendor/bundle/ruby/2.0.0/gems/ffi-1.9.3/ext/ffi_c/libffi-x86_64-linux"
   make[1]: Entering directory `/tmp/build_6e4275c6-8442-4a39-9175-f20505baf383/vendor/bundle/ruby/2.0.0/gems/ffi-1.9.3/ext/ffi_c/libffi-x86_64-linux'

最近添加的宝石包括ffi:

  gem 'sass', github: 'nex3/sass'
  gem 'sass-rails'
  gem "compass", "~> 1.0.0.alpha.18"
  gem "compass-rails", "~> 1.1.2"
  gem 'susy', github: 'ericam/susy', branch: 'susy-next'

有没有人将ffi运到Heroku以避免这种情况？

Answer 1

我按照以下步骤处理同样的问题.我建议做同样的事情

1. 将ffi添加到本地gemfile,将其版本指定为1.9.0,例如 gem 'ffi', '= 1.9.0'
2. 从本地框中卸载1.9.3版 gem uninstall ffi -v 1.9.3
3. 跑 bundle update ffi
4. 提交更改
5. 将更改推送到heroku.