scrypt无法通过授权进行安装

Question

我正在使用一个使用authlogic的Rails应用程序。包含了scrypt加密算法(虽然没有使用)。我在我的Mac上遇到这个错误。我该怎么做？

为什么i386被认为是平台？我真的不关心scrypt --我怎么才能解决这个问题呢？

ld: in '/usr/local/lib/libunwind.dylib', file was built for x86_64 which is not the architecture being linked (i386): /usr/local/lib/libunwind.dylib for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
rake aborted!
Command failed with status (1): [gcc -bundle -o x86_64-darwin/libscrypt_ext...]
/Users/jt/.rvm/gems/ruby-2.1.2@global/gems/ffi-compiler-1.0.1/lib/ffi-compiler/compile_task.rb:153:in `block in define_task!'
Tasks: TOP => default => x86_64-darwin/libscrypt_ext.bundle
(See full trace by running task with --trace)

rake failed, exit code 1

Gem files will remain installed in /Users/jt/.rvm/gems/ruby-2.1.2@ssui/gems/scrypt-3.0.5 for inspection.
Results logged to /Users/jt/.rvm/gems/ruby-2.1.2@ssui/extensions/x86_64-darwin-17/2.1.0/scrypt-3.0.5/gem_make.out

An error occurred while installing scrypt (3.0.5), and Bundler cannot continue.
Make sure that `gem install scrypt -v '3.0.5'` succeeds before bundling.

In Gemfile:
  authlogic was resolved to 3.6.0, which depends on
    scrypt

Answer 1

`bundle update scrypt`

scrypt gem刚刚发布了解决这个问题的3.0.6。它不在changelog中，但您可以阅读PR：https://github.com/pbhogan/scrypt/pull/72

Answer 2

scrypt gem版本的3.0.5导致了此问题。

我在检查他们的releases，但找不到3.0.5。最新版本是3.0.3

jvillian可能是对的。解决方案可以使用wtfiwtz建议：

从/Users/<username>/.rvm/gems/ruby-2.3.1/gems/scrypt-2.0.2/ext/scrypt/Rakefile和/Users/<username>/.rvm/gems/ruby-2.3.1/gems/scrypt-2.0.2/Rakefile中删除对-arch i386的引用，然后执行以下操作：

cp -R /Users/<username>/.rvm/gems/ruby-2.3.1/gems/scrypt-2.0.2/ ~/Code/scrypt
cd ~/Code/scrypt
gem build scrypt.gemspec
gem install --local scrypt-2.0.2.gem

我还不得不注释掉一行关于scrypt.gemspec中签名密钥的内容

通过检查the scrypt Rakefile sourcecode，我找到了可能触发错误的代码。这是一个mac特定的问题(if t.platform.mac?)。

desc "FFI compiler"
namespace "ffi-compiler" do
  FFI::Compiler::CompileTask.new('ext/scrypt/scrypt_ext') do |t|
    t.cflags << "-Wall -std=c99"
    t.cflags << "-msse -msse2" if t.platform.arch.include? "86"
    t.cflags << "-D_GNU_SOURCE=1" if RbConfig::CONFIG["host_os"].downcase =~ /mingw/
    t.cflags << "-D_POSIX_C_SOURCE=199309L" if RbConfig::CONFIG['host_os'].downcase =~ /linux/
    t.cflags << "-arch x86_64 -arch i386" if t.platform.mac?
    t.ldflags << "-arch x86_64 -arch i386" if t.platform.mac?

    t.add_define 'WINDOWS_OS' if FFI::Platform.windows?
  end
end