Apply patches cleanly.

ruby-2.1.0-Allow-to-specify-additional-preludes-by-configuratio.patch

@@ -39,7 +39,7 @@ diff --git a/configure.in b/configure.in
 index 0e371e2..d4f1dcb 100644
 --- a/configure.in
 +++ b/configure.in
-@@ -4536,6 +4536,13 @@ AC_SUBST(rubyarchhdrdir)dnl
+@@ -4563,6 +4563,13 @@ AC_SUBST(rubyarchhdrdir)dnl
  AC_SUBST(sitearchhdrdir)dnl
  AC_SUBST(vendorarchhdrdir)dnl
  

ruby-2.1.0-Enable-configuration-of-archlibdir.patch

@@ -11,7 +11,7 @@ diff --git a/configure.in b/configure.in
 index 37d9a62..553d4d0 100644
 --- a/configure.in
 +++ b/configure.in
-@@ -3790,6 +3790,11 @@ if test ${multiarch+set}; then
+@@ -3823,6 +3823,11 @@ if test ${multiarch+set}; then
  fi
  
  archlibdir='${libdir}/${arch}'

ruby-2.1.0-Prevent-duplicated-paths-when-empty-version-string-i.patch

@@ -14,7 +14,7 @@ diff --git a/configure.in b/configure.in
 index db37cd6..ce8d149 100644
 --- a/configure.in
 +++ b/configure.in
-@@ -4390,7 +4390,8 @@ AS_CASE(["$ruby_version_dir_name"],
+@@ -4417,7 +4417,8 @@ AS_CASE(["$ruby_version_dir_name"],
  ruby_version_dir=/'${ruby_version_dir_name}'
  
  if test -z "${ruby_version_dir_name}"; then

ruby-2.1.0-always-use-i386.patch

@@ -11,7 +11,7 @@ diff --git a/configure.in b/configure.in
 index 553d4d0..03a4152 100644
 --- a/configure.in
 +++ b/configure.in
-@@ -4454,6 +4454,8 @@ AC_SUBST(vendorarchdir)dnl
+@@ -4481,6 +4481,8 @@ AC_SUBST(vendorarchdir)dnl
  AC_SUBST(CONFIGURE, "`echo $0 | sed 's|.*/||'`")dnl
  AC_SUBST(configure_args, "`echo "${ac_configure_args}" | sed 's/\\$/$$/g'`")dnl
  

ruby-2.1.0-custom-rubygems-location.patch

@@ -15,7 +15,7 @@ diff --git a/configure.in b/configure.in
 index 03a4152..0e371e2 100644
 --- a/configure.in
 +++ b/configure.in
-@@ -4426,6 +4426,10 @@ AC_ARG_WITH(vendorarchdir,
+@@ -4453,6 +4453,10 @@ AC_ARG_WITH(vendorarchdir,
              [vendorarchdir=$withval],
              [vendorarchdir=${multiarch+'${rubysitearchprefix}/vendor_ruby'${ruby_version_dir}}${multiarch-'${vendorlibdir}/${sitearch}'}])
  
@@ -26,7 +26,7 @@ index 03a4152..0e371e2 100644
  if test "${LOAD_RELATIVE+set}"; then
      AC_DEFINE_UNQUOTED(LOAD_RELATIVE, $LOAD_RELATIVE)
      RUBY_EXEC_PREFIX=''
-@@ -4450,6 +4454,7 @@ AC_SUBST(sitearchdir)dnl
+@@ -4477,6 +4481,7 @@ AC_SUBST(sitearchdir)dnl
  AC_SUBST(vendordir)dnl
  AC_SUBST(vendorlibdir)dnl
  AC_SUBST(vendorarchdir)dnl

ruby-2.3.0-ruby_version.patch

@@ -20,7 +20,7 @@ diff --git a/configure.in b/configure.in
 index db37cd6..6e73fae 100644
 --- a/configure.in
 +++ b/configure.in
-@@ -4341,9 +4341,6 @@ AS_CASE(["$target_os"],
+@@ -4368,9 +4368,6 @@ AS_CASE(["$target_os"],
      rubyw_install_name='$(RUBYW_INSTALL_NAME)'
      ])
  
@@ -30,7 +30,7 @@ index db37cd6..6e73fae 100644
  rubyarchprefix=${multiarch+'${archlibdir}/${RUBY_BASE_NAME}'}${multiarch-'${rubylibprefix}/${arch}'}
  AC_ARG_WITH(rubyarchprefix,
  	    AS_HELP_STRING([--with-rubyarchprefix=DIR],
-@@ -4366,56 +4363,62 @@ AC_ARG_WITH(ridir,
+@@ -4393,56 +4390,62 @@ AC_ARG_WITH(ridir,
  AC_SUBST(ridir)
  AC_SUBST(RI_BASE_NAME)
  
@@ -120,7 +120,7 @@ index db37cd6..6e73fae 100644
  
  if test "${LOAD_RELATIVE+set}"; then
      AC_DEFINE_UNQUOTED(LOAD_RELATIVE, $LOAD_RELATIVE)
-@@ -4432,6 +4435,7 @@ AC_SUBST(sitearchincludedir)dnl
+@@ -4459,6 +4462,7 @@ AC_SUBST(sitearchincludedir)dnl
  AC_SUBST(arch)dnl
  AC_SUBST(sitearch)dnl
  AC_SUBST(ruby_version)dnl
@@ -245,7 +245,7 @@ diff --git a/test/rubygems/test_gem.rb b/test/rubygems/test_gem.rb
 index 0428bea..b6e090e 100644
 --- a/test/rubygems/test_gem.rb
 +++ b/test/rubygems/test_gem.rb
-@@ -1101,7 +1101,8 @@ def test_self_use_paths
+@@ -1124,7 +1124,8 @@ def test_self_use_paths
  
    def test_self_user_dir
      parts = [@userhome, '.gem', Gem.ruby_engine]
@@ -255,7 +255,7 @@ index 0428bea..b6e090e 100644
  
      assert_equal File.join(parts), Gem.user_dir
    end
-@@ -1228,7 +1229,7 @@ def test_self_user_home_user_drive_and_path
+@@ -1251,7 +1252,7 @@ def test_self_user_home_user_drive_and_path
    def test_self_vendor_dir
      expected =
        File.join RbConfig::CONFIG['vendordir'], 'gems',