def build_extensions
return if @spec.extensions.empty?
say "Building native extensions. This could take a while..."
start_dir = Dir.pwd
dest_path = File.join @gem_dir, @spec.require_paths.first
ran_rake = false
@spec.extensions.each do |extension|
break if ran_rake
results = []
builder = case extension
when /extconf/ then
Gem::Ext::ExtConfBuilder
when /configure/ then
Gem::Ext::ConfigureBuilder
when /rakefile/i, /mkrf_conf/i then
ran_rake = true
Gem::Ext::RakeBuilder
else
results = ["No builder for extension '#{extension}'"]
nil
end
begin
Dir.chdir File.join(@gem_dir, File.dirname(extension))
results = builder.build(extension, @gem_dir, dest_path, results)
say results.join("\n") if Gem.configuration.really_verbose
rescue => ex
results = results.join "\n"
File.open('gem_make.out', 'wb') { |f| f.puts results }
message = "ERROR: Failed to build gem native extension.\n\n\#{results}\n\nGem files will remain installed in \#{@gem_dir} for inspection.\nResults logged to \#{File.join(Dir.pwd, 'gem_make.out')}\n"
raise ExtensionBuildError, message
ensure
Dir.chdir start_dir
end
end
end