usa	2014-12-26 01:48:32 +0900 (Fri, 26 Dec 2014)

  New Revision: 49015

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=49015

  Log:
    * tool/rbinstall.rb: skip installing bundle gems if zlib is unavailable.

  Modified files:
    trunk/ChangeLog
    trunk/tool/rbinstall.rb
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 49014)
+++ ChangeLog	(revision 49015)
@@ -1,3 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Fri Dec 26 01:41:40 2014  NAKAMURA Usaku  <usa@r...>
+
+	* tool/rbinstall.rb: skip installing bundle gems if zlib is unavailable.
+
 Fri Dec 26 01:24:42 2014  NAKAMURA Usaku  <usa@r...>
 
 	* tool/downloader.rb: support old versions of ruby.
Index: tool/rbinstall.rb
===================================================================
--- tool/rbinstall.rb	(revision 49014)
+++ tool/rbinstall.rb	(revision 49015)
@@ -709,20 +709,28 @@ install?(:ext, :comm, :gem) do https://github.com/ruby/ruby/blob/trunk/tool/rbinstall.rb#L709
 end
 
 install?(:ext, :comm, :gem) do
-  require 'pathname'
-  gem_dir = Gem.default_dir
-  directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
-  prepare "bundle gems", gem_dir, directories
-  Dir.glob(srcdir+'/gems/*.gem').each do |gem|
-    Gem.install gem, Gem::Requirement.default, :install_dir => with_destdir(Gem.dir), :domain => :local, :ignore_dependencies => true
-    gemname = Pathname(gem).basename
-    puts "#{" "*30}#{gemname}"
+  begin
+    require "zlib"
+  rescue LoadErroe
+  end
+  if defined?(Zlib)
+    require 'pathname'
+    gem_dir = Gem.default_dir
+    directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
+    prepare "bundle gems", gem_dir, directories
+    Dir.glob(srcdir+'/gems/*.gem').each do |gem|
+      Gem.install gem, Gem::Requirement.default, :install_dir => with_destdir(Gem.dir), :domain => :local, :ignore_dependencies => true
+      gemname = Pathname(gem).basename
+      puts "#{" "*30}#{gemname}"
+    end
+    # fix directory permissions
+    # TODO: Gem.install should accept :dir_mode option or something
+    File.chmod($dir_mode, *Dir.glob(with_destdir(Gem.dir)+"/**/"))
+    # fix .gemspec permissions
+    File.chmod($data_mode, *Dir.glob(with_destdir(Gem.dir)+"/specifications/*.gemspec"))
+  else
+    puts "skip installing bundle gems because of lacking zlib"
   end
-  # fix directory permissions
-  # TODO: Gem.install should accept :dir_mode option or something
-  File.chmod($dir_mode, *Dir.glob(with_destdir(Gem.dir)+"/**/"))
-  # fix .gemspec permissions
-  File.chmod($data_mode, *Dir.glob(with_destdir(Gem.dir)+"/specifications/*.gemspec"))
 end
 
 parse_args()

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