--- ruby-1.9.3-p0/lib/rubygems/uninstaller.rb.orig	2011-10-31 10:22:36.321579483 +0100

+++ ruby-1.9.3-p0/lib/rubygems/uninstaller.rb	2011-10-31 10:34:25.563626119 +0100

@@ -51,15 +51,14 @@

     @bin_dir           = options[:bin_dir]

     @format_executable = options[:format_executable]

+    if options[:force]

+      @force_all = true

+      @force_ignore = true

+    end

+

     # only add user directory if install_dir is not set

     @user_install = false

     @user_install = options[:user_install] unless options[:install_dir]

-

-    if @user_install then

-      Gem.use_paths Gem.user_dir, @gem_home

-    else

-      Gem.use_paths @gem_home

-    end

   end

   ##

@@ -69,10 +68,24 @@

   def uninstall

     list = Gem::Specification.find_all_by_name(@gem, @version)

+    list, other_repo_specs = list.partition do |spec|

+      @gem_home == spec.base_dir or

+      (@user_install and spec.base_dir == Gem.user_dir)

+    end

+

     if list.empty? then

-      raise Gem::InstallError, "gem #{@gem.inspect} is not installed"

+      raise Gem::InstallError, "gem #{@gem.inspect} is not installed" if

+        other_repo_specs.empty?

+

+      other_repos = other_repo_specs.map { |spec| spec.base_dir }.uniq

+

+      message = ["#{@gem} is not installed in GEM_HOME, try:"]

+      message.concat other_repos.map { |repo|

+        "\tgem uninstall -i #{repo} #{@gem}"

+      }

-    elsif list.size > 1 and @force_all then

+      raise Gem::InstallError, message.join("\n")

+    elsif @force_all then

       remove_all list

     elsif list.size > 1 then

@@ -250,12 +263,10 @@

     msg << "\t#{spec.full_name}"

     spec.dependent_gems.each do |dep_spec, dep, satlist|

-      msg <<

-        ("#{dep_spec.name}-#{dep_spec.version} depends on " +

-         "[#{dep.name} (#{dep.requirement})]")

+      msg << "#{dep_spec.name}-#{dep_spec.version} depends on #{dep}"

     end

-    msg << 'If you remove this gems, one or more dependencies will not be met.'

+    msg << 'If you remove this gem, one or more dependencies will not be met.'

     msg << 'Continue with Uninstall?'

     return ask_yes_no(msg.join("\n"), true)

   end

--- ruby-1.9.3-p0/test/rubygems/test_gem_uninstaller.rb.orig	2011-11-03 08:58:31.411272176 +0100

+++ ruby-1.9.3-p0/test/rubygems/test_gem_uninstaller.rb	2011-11-03 08:58:43.010272351 +0100

@@ -225,7 +225,7 @@

     uninstaller = Gem::Uninstaller.new('a')

-    use_ui Gem::MockGemUi.new("2\n") do

+    use_ui Gem::MockGemUi.new("2\ny\n") do

       uninstaller.uninstall

     end