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$NetBSD: patch-lib_rubygems_installer.rb,v 1.1 2017/06/18 13:45:11 taca Exp $
--- lib/rubygems/installer.rb.orig 2016-09-28 01:16:43.000000000 +0000
+++ lib/rubygems/installer.rb
@@ -149,6 +149,9 @@ class Gem::Installer
# foo_exec18.
# :ignore_dependencies:: Don't raise if a dependency is missing.
# :install_dir:: The directory to install the gem into.
+ # :install_root:: The directory to use as a buildroot for "destdir"-style
+ # installation. All paths during installation are relative
+ # to the buildroot.
# :security_policy:: Use the specified security policy. See Gem::Security
# :user_install:: Indicate that the gem should be unpacked into the users
# personal gem directory.
@@ -653,7 +656,12 @@ class Gem::Installer
# If the user has asked for the gem to be installed in a directory that is
# the system gem directory, then use the system bin directory, else create
# (or use) a new bin dir under the gem_home.
- @bin_dir = options[:bin_dir] || Gem.bindir(gem_home)
+ install_root = options[:install_root]
+ @bin_dir = options[:bin_dir] || Gem.bindir(gem_home, install_root)
+ unless install_root.nil? or install_root.empty?
+ @install_root = File.expand_path install_root
+ @gem_home = File.join(@install_root, @gem_home)
+ end
@development = options[:development]
@build_root = options[:build_root]
@@ -839,6 +847,9 @@ TEXT
return if @build_args.empty?
build_info_dir = File.join gem_home, 'build_info'
+ unless @install_root.nil? or @install_root.empty?
+ build_info_dir = File.join @gem_home, "build_info"
+ end
FileUtils.mkdir_p build_info_dir
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