[gentoo-commits] proj/ruby-scripts:master commit in: patchsets/patches-2.3.4-r2/, patchsets/patches-2.4.1-r2/, ...

[Hans de Graaff]

commit:     67be6af45f8b9730f178984f3fa7120bf560c93f
Author:     Hans de Graaff <hans <AT> degraaff <DOT> org>
AuthorDate: Sat May 27 06:57:43 2017 +0000
Commit:     Hans de Graaff <graaff <AT> gentoo <DOT> org>
CommitDate: Sat May 27 06:57:43 2017 +0000
URL:        https://gitweb.gentoo.org/proj/ruby-scripts.git/commit/?id=67be6af4

Add patchsets for -r2 revision of current ruby versions

    Ruby 2.4:

    Add USE=static-libs support on ruby 2.4, bug 618878
    Allow better crossdev on windows with ruby 2.4, bug 618878

    Thanks to ntzrmtthihu777 for providing patches.

    Ruby 2.2, 2.3, 2.3:

    Fix compilation on ia64, bug 561780

    Thanks to slyfox for providing patches.

    Ruby 2.2:

    Backport tcl/tk security fixes, bug 605536

 patchsets/patches-2.2.7-r2/001_ia64.patch          |  62 ++++++++++++
 patchsets/patches-2.2.7-r2/004_gfbsd7.patch        |  37 +++++++
 .../patches-2.2.7-r2/005_no-undefined-ext.patch    |  11 ++
 patchsets/patches-2.2.7-r2/006_tcltk1.patch        |  27 +++++
 patchsets/patches-2.2.7-r2/007_tcltk2.patch        | 110 ++++++++++++++++++++
 patchsets/patches-2.2.7-r2/009_no-gems.patch       |  88 ++++++++++++++++
 patchsets/patches-2.3.4-r2/001_ia64.patch          |  62 ++++++++++++
 patchsets/patches-2.3.4-r2/004_gfbsd7.patch        |  37 +++++++
 .../patches-2.3.4-r2/005_no-undefined-ext.patch    |  11 ++
 patchsets/patches-2.3.4-r2/009_no-gems.patch       |  95 +++++++++++++++++
 patchsets/patches-2.4.1-r2/001_ia64.patch          |  62 ++++++++++++
 .../patches-2.4.1-r2/002_windows_crossdev.patch    |  64 ++++++++++++
 .../patches-2.4.1-r2/005_no-undefined-ext.patch    |  11 ++
 patchsets/patches-2.4.1-r2/009_no-gems.patch       | 112 +++++++++++++++++++++
 14 files changed, 789 insertions(+)

diff --git a/patchsets/patches-2.2.7-r2/001_ia64.patch b/patchsets/patches-2.2.7-r2/001_ia64.patch
new file mode 100644
index 0000000..e1e9c89
--- /dev/null
+++ b/patchsets/patches-2.2.7-r2/001_ia64.patch
@@ -0,0 +1,62 @@
+Bug: https://bugs.gentoo.org/show_bug.cgi?id=561780
+
+fix crash on register stack mark/sweep pass
+
+The crash looks like
+
+  Program received signal SIGSEGV, Segmentation fault.
+  mark_locations_array (objspace=0x6000000000045db0, x=0x0, n=864692227966763116) at gc.c:3297
+  3297            v = *x;
+  (gdb) bt
+  #0  mark_locations_array (objspace=0x6000000000045db0, x=0x0, n=864692227966763116) at gc.c:3297
+  #1  0x400000000014a040 in gc_mark_locations (objspace=0x6000000000045db0, start=0x0, end=0x6000080000000368) at gc.c:3310
+  #2  0x400000000014b3a0 in mark_current_machine_context (objspace=0x6000000000045db0, th=0x60000000000455b0) at gc.c:3500
+  #3  0x400000000014dfe0 in gc_mark_roots (objspace=0x6000000000045db0, full_mark=0, categoryp=0x0) at gc.c:4105
+  #4  0x400000000014e6b0 in gc_marks_body (objspace=0x6000000000045db0, full_mark=0) at gc.c:4164
+  #5  0x400000000014f260 in gc_marks (objspace=0x6000000000045db0, full_mark=0) at gc.c:4526
+  #6  0x40000000001525c0 in garbage_collect_body (objspace=0x6000000000045db0, full_mark=0, immediate_sweep=0, reason=256) at gc.c:5024
+  #7  0x400000000013c010 in heap_prepare_freepage (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1219
+  #8  0x400000000013c140 in heap_get_freeobj_from_next_freepage (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1237
+  #9  0x400000000013c360 in heap_get_freeobj (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1259
+  #10 0x400000000013c950 in newobj_of (klass=0, flags=40, v1=0, v2=0, v3=0) at gc.c:1303
+  #11 0x400000000013ccc0 in rb_newobj_of (klass=0, flags=40) at gc.c:1356
+  #12 0x4000000000163740 in hash_alloc (klass=0) at hash.c:289
+  #13 0x4000000000163860 in rb_hash_new () at hash.c:309
+  #14 0x400000000050e420 in Init_BareVM () at vm.c:2822
+  #15 0x40000000000f6b60 in ruby_setup () at eval.c:54
+  #16 0x40000000000f6f50 in ruby_init () at eval.c:75
+  #17 0x400000000001b010 in main (argc=9, argv=0x60000fffffffb1d8) at main.c:35
+
+The problem here is in call
+    gc_mark_locations (objspace=0x6000000000045db0, start=0x0, end=0x6000080000000368) at gc.c:3310
+where 'start' (native_main_thread.register_stack_start)
+is supposed to be stack start but it's not initialized.
+
+The initialization of 'native_main_thread.register_stack_start'
+is supposed to be done in 'ruby_init_stack()'.
+
+But code under 'MAINSTACKADDR_AVAILABLE' exits early.
+The fix is to move 'register_stack_start' earlier.
+
+diff --git a/thread_pthread.c b/thread_pthread.c
+index c8a7a16..9ad448b 100644
+--- a/thread_pthread.c
++++ b/thread_pthread.c
+@@ -722,2 +722,8 @@ ruby_init_stack(volatile VALUE *addr
+     native_main_thread.id = pthread_self();
++#ifdef __ia64
++    if (!native_main_thread.register_stack_start ||
++        (VALUE*)bsp < native_main_thread.register_stack_start) {
++        native_main_thread.register_stack_start = (VALUE*)bsp;
++    }
++#endif
+ #if MAINSTACKADDR_AVAILABLE
+@@ -745,8 +751,2 @@ ruby_init_stack(volatile VALUE *addr
+ #endif
+-#ifdef __ia64
+-    if (!native_main_thread.register_stack_start ||
+-        (VALUE*)bsp < native_main_thread.register_stack_start) {
+-        native_main_thread.register_stack_start = (VALUE*)bsp;
+-    }
+-#endif
+     {

diff --git a/patchsets/patches-2.2.7-r2/004_gfbsd7.patch b/patchsets/patches-2.2.7-r2/004_gfbsd7.patch
new file mode 100644
index 0000000..450d714
--- /dev/null
+++ b/patchsets/patches-2.2.7-r2/004_gfbsd7.patch
@@ -0,0 +1,37 @@
+--- configure.in.orig	2013-05-05 19:36:02.800254192 +0200
++++ configure.in	2013-05-05 19:37:56.573346196 +0200
+@@ -2156,7 +2156,7 @@
+ fi
+ 
+ AS_CASE(["$target_os"],
+-[linux* | gnu* | k*bsd*-gnu | bsdi* | kopensolaris*-gnu | nacl], [
++[linux* | gnu* | k*bsd*-gnu | bsdi* | kopensolaris*-gnu | nacl | freebsd* | dragonfly*], [
+     if test "$rb_cv_binary_elf" = no; then
+ 	with_dln_a_out=yes
+     else
+@@ -2249,7 +2249,7 @@
+ 	[bsdi3*], [	AS_CASE(["$CC"],
+ 			[*shlicc*], [	: ${LDSHARED='$(CC) -r'}
+ 					rb_cv_dlopen=yes])],
+-	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu], [
++	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu | freebsd7*], [
+ 			: ${LDSHARED='$(CC) -shared'}
+ 			if test "$rb_cv_binary_elf" = yes; then
+ 			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
+@@ -2262,7 +2262,6 @@
+ 	[freebsd*|dragonfly*], [
+ 			: ${LDSHARED='$(CC) -shared'}
+ 			if test "$rb_cv_binary_elf" = yes; then
+-			    LDFLAGS="$LDFLAGS -rdynamic"
+ 			    DLDFLAGS="$DLDFLAGS "'-Wl,-soname,$@'
+ 			else
+ 			  test "$GCC" = yes && test "$rb_cv_prog_gnu_ld" = yes || LDSHARED='$(LD) -Bshareable'
+@@ -2638,7 +2637,7 @@
+     [sunos4*], [
+ 	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).so'
+ 	],
+-    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu], [
++    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu | freebsd7*], [
+ 	LIBRUBY_DLDFLAGS='-Wl,-soname,lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR)'" $LDFLAGS_OPTDIR"
+ 	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).so'
+ 	if test "$load_relative" = yes; then

diff --git a/patchsets/patches-2.2.7-r2/005_no-undefined-ext.patch b/patchsets/patches-2.2.7-r2/005_no-undefined-ext.patch
new file mode 100644
index 0000000..f279932
--- /dev/null
+++ b/patchsets/patches-2.2.7-r2/005_no-undefined-ext.patch
@@ -0,0 +1,11 @@
+--- ruby-1.9.3-preview1.orig/configure.in
++++ ruby-1.9.3-preview1/configure.in
+@@ -2038,7 +2038,7 @@ if test "$with_dln_a_out" != yes; then
+ 	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu], [
+ 			: ${LDSHARED='$(CC) -shared'}
+ 			if test "$rb_cv_binary_elf" = yes; then
+-			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
++			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic -Wl,--no-undefined"
+ 			fi
+ 			rb_cv_dlopen=yes],
+ 	[interix*], [	: ${LDSHARED='$(CC) -shared'}

diff --git a/patchsets/patches-2.2.7-r2/006_tcltk1.patch b/patchsets/patches-2.2.7-r2/006_tcltk1.patch
new file mode 100644
index 0000000..a0e7444
--- /dev/null
+++ b/patchsets/patches-2.2.7-r2/006_tcltk1.patch
@@ -0,0 +1,27 @@
+From ebd0fc80d62eeb7b8556522256f8d035e013eb65 Mon Sep 17 00:00:00 2001
+From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+Date: Sun, 2 Aug 2015 01:27:31 +0000
+Subject: [PATCH] tcltklib.c: check argument
+
+* ext/tk/tcltklib.c (ip_cancel_eval_core): check argument type and
+  length.
+
+git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
+---
+ ext/tk/tcltklib.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/ext/tk/tcltklib.c b/ext/tk/tcltklib.c
+index afcee3b..e305c13 100644
+--- a/ext/tk/tcltklib.c
++++ b/ext/tk/tcltklib.c
+@@ -7745,7 +7745,8 @@ ip_cancel_eval_core(interp, msg, flag)
+     if (NIL_P(msg)) {
+       msg_obj = NULL;
+     } else {
+-      msg_obj = Tcl_NewStringObj(RSTRING_PTR(msg), RSTRING_LEN(msg));
++      char *s = StringValuePtr(msg);
++      msg_obj = Tcl_NewStringObj(s, RSTRING_LENINT(msg));
+       Tcl_IncrRefCount(msg_obj);
+     }
+ 

diff --git a/patchsets/patches-2.2.7-r2/007_tcltk2.patch b/patchsets/patches-2.2.7-r2/007_tcltk2.patch
new file mode 100644
index 0000000..2357898
--- /dev/null
+++ b/patchsets/patches-2.2.7-r2/007_tcltk2.patch
@@ -0,0 +1,110 @@
+From d098136e3f62a4879a7d7cd34bbd50f482ba3331 Mon Sep 17 00:00:00 2001
+From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+Date: Tue, 9 Aug 2016 05:05:11 +0000
+Subject: [PATCH] tcltklib.c: use StringValueCStr [ci skip]
+
+* ext/tk/tcltklib.c (set_max_block_time, tcl_protect_core,
+  ip_init, ip_create_slave_core, get_obj_from_str,
+  ip_cancel_eval_core, lib_set_system_encoding,
+  alloc_invoke_arguments, lib_merge_tklist): use StringValueCStr
+  instead of StringValuePtr for values to be passed to Tcl
+  interperter.
+
+git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55842 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
+---
+ ext/tk/tcltklib.c | 26 +++++++++++++-------------
+ 1 file changed, 13 insertions(+), 13 deletions(-)
+
+diff --git a/ext/tk/tcltklib.c b/ext/tk/tcltklib.c
+index 430c934..721f497 100644
+--- a/ext/tk/tcltklib.c
++++ b/ext/tk/tcltklib.c
+@@ -3303,7 +3303,7 @@ tcl_protect_core(interp, proc, data) /* should not raise exception */
+         DUMP1("set backtrace");
+         if (!NIL_P(backtrace = rb_funcallv(exc, ID_backtrace, 0, 0))) {
+             backtrace = rb_ary_join(backtrace, rb_str_new2("\n"));
+-            Tcl_AddErrorInfo(interp, StringValuePtr(backtrace));
++            Tcl_AddErrorInfo(interp, StringValueCStr(backtrace));
+         }
+ 
+         rb_thread_critical = thr_crit_bup;
+@@ -6208,19 +6208,19 @@ ip_init(argc, argv, self)
+             /* without Tk */
+             with_tk = 0;
+         } else {
+-            /* Tcl_SetVar(ptr->ip, "argv", StringValuePtr(opts), 0); */
+-            Tcl_SetVar(ptr->ip, "argv", StringValuePtr(opts), TCL_GLOBAL_ONLY);
++            /* Tcl_SetVar(ptr->ip, "argv", StringValueCStr(opts), 0); */
++            Tcl_SetVar(ptr->ip, "argv", StringValueCStr(opts), TCL_GLOBAL_ONLY);
+ 	    Tcl_Eval(ptr->ip, "set argc [llength $argv]");
+         }
+     case 1:
+         /* argv0 */
+         if (!NIL_P(argv0)) {
+-            if (strncmp(StringValuePtr(argv0), "-e", 3) == 0
+-                || strncmp(StringValuePtr(argv0), "-", 2) == 0) {
++            if (strncmp(StringValueCStr(argv0), "-e", 3) == 0
++                || strncmp(StringValueCStr(argv0), "-", 2) == 0) {
+                 Tcl_SetVar(ptr->ip, "argv0", "ruby", TCL_GLOBAL_ONLY);
+             } else {
+-                /* Tcl_SetVar(ptr->ip, "argv0", StringValuePtr(argv0), 0); */
+-                Tcl_SetVar(ptr->ip, "argv0", StringValuePtr(argv0),
++                /* Tcl_SetVar(ptr->ip, "argv0", StringValueCStr(argv0), 0); */
++                Tcl_SetVar(ptr->ip, "argv0", StringValueCStr(argv0),
+                            TCL_GLOBAL_ONLY);
+             }
+         }
+@@ -6420,7 +6420,7 @@ ip_create_slave_core(interp, argc, argv)
+     slave->allow_ruby_exit = 0;
+     slave->return_value = 0;
+ 
+-    slave->ip = Tcl_CreateSlave(master->ip, StringValuePtr(name), safe);
++    slave->ip = Tcl_CreateSlave(master->ip, StringValueCStr(name), safe);
+     if (slave->ip == NULL) {
+         rb_thread_critical = thr_crit_bup;
+         return rb_exc_new2(rb_eRuntimeError,
+@@ -6896,7 +6896,7 @@ static Tcl_Obj *
+ get_obj_from_str(str)
+     VALUE str;
+ {
+-    const char *s = StringValuePtr(str);
++    const char *s = StringValueCStr(str);
+ 
+ #if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION == 0
+     return Tcl_NewStringObj((char*)s, RSTRING_LEN(str));
+@@ -7744,7 +7744,7 @@ ip_cancel_eval_core(interp, msg, flag)
+     if (NIL_P(msg)) {
+       msg_obj = NULL;
+     } else {
+-      char *s = StringValuePtr(msg);
++      char *s = StringValueCStr(msg);
+       msg_obj = Tcl_NewStringObj(s, RSTRING_LENINT(msg));
+       Tcl_IncrRefCount(msg_obj);
+     }
+@@ -8409,7 +8409,7 @@ lib_set_system_encoding(self, enc_name)
+ 
+     enc_name = rb_funcallv(enc_name, ID_to_s, 0, 0);
+     if (Tcl_SetSystemEncoding((Tcl_Interp *)NULL,
+-                              StringValuePtr(enc_name)) != TCL_OK) {
++                              StringValueCStr(enc_name)) != TCL_OK) {
+         rb_raise(rb_eArgError, "unknown encoding name '%s'",
+                  RSTRING_PTR(enc_name));
+     }
+@@ -8850,7 +8850,7 @@ alloc_invoke_arguments(argc, argv)
+     Tcl_Preserve((ClientData)av); /* XXXXXXXX */
+ #endif
+     for (i = 0; i < argc; ++i) {
+-        av[i] = strdup(StringValuePtr(argv[i]));
++        av[i] = strdup(StringValueCStr(argv[i]));
+     }
+     av[argc] = NULL;
+ #endif
+@@ -9854,7 +9854,7 @@ lib_merge_tklist(argc, argv, obj)
+     len = 1;
+     for(num = 0; num < argc; num++) {
+         if (OBJ_TAINTED(argv[num])) taint_flag = 1;
+-        dst = StringValuePtr(argv[num]);
++        dst = StringValueCStr(argv[num]);
+ #if TCL_MAJOR_VERSION >= 8
+         len += Tcl_ScanCountedElement(dst, RSTRING_LENINT(argv[num]),
+                                       &flagPtr[num]) + 1;

diff --git a/patchsets/patches-2.2.7-r2/009_no-gems.patch b/patchsets/patches-2.2.7-r2/009_no-gems.patch
new file mode 100644
index 0000000..a67cbf8
--- /dev/null
+++ b/patchsets/patches-2.2.7-r2/009_no-gems.patch
@@ -0,0 +1,88 @@
+--- tool/rbinstall.rb.~1~	2015-03-25 04:33:14.000000000 +0100
++++ tool/rbinstall.rb	2015-04-14 07:07:01.169073427 +0200
+@@ -654,83 +654,11 @@
+ # :startdoc:
+ 
+ install?(:ext, :comm, :gem) do
+-  $:.unshift(File.join(srcdir, "lib"))
+-  require("rubygems.rb")
+-  gem_dir = Gem.default_dir
+-  directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
+-  prepare "default gems", gem_dir, directories
+-
+-  spec_dir = File.join(gem_dir, directories.grep(/^spec/)[0])
+-  default_spec_dir = "#{spec_dir}/default"
+-  makedirs(default_spec_dir)
+-
+-  gems = {}
+-  File.foreach(File.join(srcdir, "defs/default_gems")) do |line|
+-    line.chomp!
+-    line.sub!(/\s*#.*/, '')
+-    next if line.empty?
+-    words = []
+-    line.scan(/\G\s*([^\[\]\s]+|\[([^\[\]]*)\])/) do
+-      words << ($2 ? $2.split : $1)
+-    end
+-    name, base_dir, src, execs = *words
+-    next unless name and base_dir and src
+-
+-    src       = File.join(srcdir, src)
+-    base_dir  = File.join(srcdir, base_dir)
+-    specgen   = RbInstall::Specs::Generator.new(name, base_dir, src, execs || [])
+-    gems[name] ||= specgen
+-  end
+-
+-  Dir.glob(srcdir+"/{lib,ext}/**/*.gemspec").each do |src|
+-    specgen   = RbInstall::Specs::Reader.new(src)
+-    gems[specgen.gemspec.name] ||= specgen
+-  end
+-
+-  gems.sort.each do |name, specgen|
+-    gemspec   = specgen.gemspec
+-    base_dir  = specgen.src.sub(/\A#{Regexp.escape(srcdir)}\//, "")
+-    full_name = "#{gemspec.name}-#{gemspec.version}"
+-
+-    puts "#{" "*30}#{gemspec.name} #{gemspec.version}"
+-    gemspec_path = File.join(default_spec_dir, "#{full_name}.gemspec")
+-    open_for_install(gemspec_path, $data_mode) do
+-      specgen.spec_source
+-    end
+-
+-    unless gemspec.executables.empty? then
+-      bin_dir = File.join(gem_dir, 'gems', full_name, 'bin')
+-      makedirs(bin_dir)
+-
+-      execs = gemspec.executables.map {|exec| File.join(srcdir, 'bin', exec)}
+-      install(execs, bin_dir, :mode => $prog_mode)
+-    end
+-  end
++  # gems are unbundled in Gentoo.
+ end
+ 
+ install?(:ext, :comm, :gem) do
+-  begin
+-    require "zlib"
+-  rescue LoadError
+-  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
++  # gems are unbundled in Gentoo.
+ end
+ 
+ parse_args()

diff --git a/patchsets/patches-2.3.4-r2/001_ia64.patch b/patchsets/patches-2.3.4-r2/001_ia64.patch
new file mode 100644
index 0000000..e1e9c89
--- /dev/null
+++ b/patchsets/patches-2.3.4-r2/001_ia64.patch
@@ -0,0 +1,62 @@
+Bug: https://bugs.gentoo.org/show_bug.cgi?id=561780
+
+fix crash on register stack mark/sweep pass
+
+The crash looks like
+
+  Program received signal SIGSEGV, Segmentation fault.
+  mark_locations_array (objspace=0x6000000000045db0, x=0x0, n=864692227966763116) at gc.c:3297
+  3297            v = *x;
+  (gdb) bt
+  #0  mark_locations_array (objspace=0x6000000000045db0, x=0x0, n=864692227966763116) at gc.c:3297
+  #1  0x400000000014a040 in gc_mark_locations (objspace=0x6000000000045db0, start=0x0, end=0x6000080000000368) at gc.c:3310
+  #2  0x400000000014b3a0 in mark_current_machine_context (objspace=0x6000000000045db0, th=0x60000000000455b0) at gc.c:3500
+  #3  0x400000000014dfe0 in gc_mark_roots (objspace=0x6000000000045db0, full_mark=0, categoryp=0x0) at gc.c:4105
+  #4  0x400000000014e6b0 in gc_marks_body (objspace=0x6000000000045db0, full_mark=0) at gc.c:4164
+  #5  0x400000000014f260 in gc_marks (objspace=0x6000000000045db0, full_mark=0) at gc.c:4526
+  #6  0x40000000001525c0 in garbage_collect_body (objspace=0x6000000000045db0, full_mark=0, immediate_sweep=0, reason=256) at gc.c:5024
+  #7  0x400000000013c010 in heap_prepare_freepage (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1219
+  #8  0x400000000013c140 in heap_get_freeobj_from_next_freepage (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1237
+  #9  0x400000000013c360 in heap_get_freeobj (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1259
+  #10 0x400000000013c950 in newobj_of (klass=0, flags=40, v1=0, v2=0, v3=0) at gc.c:1303
+  #11 0x400000000013ccc0 in rb_newobj_of (klass=0, flags=40) at gc.c:1356
+  #12 0x4000000000163740 in hash_alloc (klass=0) at hash.c:289
+  #13 0x4000000000163860 in rb_hash_new () at hash.c:309
+  #14 0x400000000050e420 in Init_BareVM () at vm.c:2822
+  #15 0x40000000000f6b60 in ruby_setup () at eval.c:54
+  #16 0x40000000000f6f50 in ruby_init () at eval.c:75
+  #17 0x400000000001b010 in main (argc=9, argv=0x60000fffffffb1d8) at main.c:35
+
+The problem here is in call
+    gc_mark_locations (objspace=0x6000000000045db0, start=0x0, end=0x6000080000000368) at gc.c:3310
+where 'start' (native_main_thread.register_stack_start)
+is supposed to be stack start but it's not initialized.
+
+The initialization of 'native_main_thread.register_stack_start'
+is supposed to be done in 'ruby_init_stack()'.
+
+But code under 'MAINSTACKADDR_AVAILABLE' exits early.
+The fix is to move 'register_stack_start' earlier.
+
+diff --git a/thread_pthread.c b/thread_pthread.c
+index c8a7a16..9ad448b 100644
+--- a/thread_pthread.c
++++ b/thread_pthread.c
+@@ -722,2 +722,8 @@ ruby_init_stack(volatile VALUE *addr
+     native_main_thread.id = pthread_self();
++#ifdef __ia64
++    if (!native_main_thread.register_stack_start ||
++        (VALUE*)bsp < native_main_thread.register_stack_start) {
++        native_main_thread.register_stack_start = (VALUE*)bsp;
++    }
++#endif
+ #if MAINSTACKADDR_AVAILABLE
+@@ -745,8 +751,2 @@ ruby_init_stack(volatile VALUE *addr
+ #endif
+-#ifdef __ia64
+-    if (!native_main_thread.register_stack_start ||
+-        (VALUE*)bsp < native_main_thread.register_stack_start) {
+-        native_main_thread.register_stack_start = (VALUE*)bsp;
+-    }
+-#endif
+     {

diff --git a/patchsets/patches-2.3.4-r2/004_gfbsd7.patch b/patchsets/patches-2.3.4-r2/004_gfbsd7.patch
new file mode 100644
index 0000000..fa561b6
--- /dev/null
+++ b/patchsets/patches-2.3.4-r2/004_gfbsd7.patch
@@ -0,0 +1,37 @@
+--- configure.in.orig	2013-05-05 19:36:02.800254192 +0200
++++ configure.in	2013-05-05 19:37:56.573346196 +0200
+@@ -2156,7 +2156,7 @@
+ fi
+ 
+ AS_CASE(["$target_os"],
+-[linux* | gnu* | k*bsd*-gnu | bsdi* | kopensolaris*-gnu | nacl], [
++[linux* | gnu* | k*bsd*-gnu | bsdi* | kopensolaris*-gnu | nacl | freebsd* | dragonfly*], [
+     if test "$rb_cv_binary_elf" = no; then
+ 	with_dln_a_out=yes
+     else
+@@ -2249,7 +2249,7 @@
+ 	[bsdi3*], [	AS_CASE(["$CC"],
+ 			[*shlicc*], [	: ${LDSHARED='$(CC) -r'}
+ 					rb_cv_dlopen=yes])],
+-	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu | haiku*], [
++	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu | haiku* | freebsd7*], [
+ 			: ${LDSHARED='$(CC) -shared'}
+ 			if test "$rb_cv_binary_elf" = yes; then
+ 			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
+@@ -2262,7 +2262,6 @@
+ 	[freebsd*|dragonfly*], [
+ 			: ${LDSHARED='$(CC) -shared'}
+ 			if test "$rb_cv_binary_elf" = yes; then
+-			    LDFLAGS="$LDFLAGS -rdynamic"
+ 			    DLDFLAGS="$DLDFLAGS "'-Wl,-soname,$@'
+ 			else
+ 			  test "$GCC" = yes && test "$rb_cv_prog_gnu_ld" = yes || LDSHARED='$(LD) -Bshareable'
+@@ -2638,7 +2637,7 @@
+     [sunos4*], [
+ 	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).so'
+ 	],
+-    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu | haiku*], [
++    [linux* | gnu* | k*bsd*-gnu | atheos* | kopensolaris*-gnu | haiku* | freebsd7*], [
+ 	LIBRUBY_DLDFLAGS='-Wl,-soname,lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR)'" $LDFLAGS_OPTDIR"
+ 	LIBRUBY_ALIASES='lib$(RUBY_SO_NAME).so.$(MAJOR).$(MINOR) lib$(RUBY_SO_NAME).so'
+ 	if test "$load_relative" = yes; then

diff --git a/patchsets/patches-2.3.4-r2/005_no-undefined-ext.patch b/patchsets/patches-2.3.4-r2/005_no-undefined-ext.patch
new file mode 100644
index 0000000..f279932
--- /dev/null
+++ b/patchsets/patches-2.3.4-r2/005_no-undefined-ext.patch
@@ -0,0 +1,11 @@
+--- ruby-1.9.3-preview1.orig/configure.in
++++ ruby-1.9.3-preview1/configure.in
+@@ -2038,7 +2038,7 @@ if test "$with_dln_a_out" != yes; then
+ 	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu], [
+ 			: ${LDSHARED='$(CC) -shared'}
+ 			if test "$rb_cv_binary_elf" = yes; then
+-			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
++			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic -Wl,--no-undefined"
+ 			fi
+ 			rb_cv_dlopen=yes],
+ 	[interix*], [	: ${LDSHARED='$(CC) -shared'}

diff --git a/patchsets/patches-2.3.4-r2/009_no-gems.patch b/patchsets/patches-2.3.4-r2/009_no-gems.patch
new file mode 100644
index 0000000..2da6b7d
--- /dev/null
+++ b/patchsets/patches-2.3.4-r2/009_no-gems.patch
@@ -0,0 +1,95 @@
+--- tool/rbinstall.rb.~1~	2017-03-27 17:18:38.000000000 +0200
++++ tool/rbinstall.rb	2017-03-30 07:38:53.437332083 +0200
+@@ -696,90 +696,11 @@
+ # :startdoc:
+ 
+ install?(:ext, :comm, :gem) do
+-  gem_dir = Gem.default_dir
+-  directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
+-  prepare "default gems", gem_dir, directories
+-
+-  spec_dir = File.join(gem_dir, directories.grep(/^spec/)[0])
+-  default_spec_dir = "#{spec_dir}/default"
+-  makedirs(default_spec_dir)
+-
+-  gems = {}
+-
+-  Dir.glob(srcdir+"/{lib,ext}/**/*.gemspec").each do |src|
+-    specgen   = RbInstall::Specs::Reader.new(src)
+-    gems[specgen.gemspec.name] ||= specgen
+-  end
+-
+-  gems.sort.each do |name, specgen|
+-    gemspec   = specgen.gemspec
+-    full_name = "#{gemspec.name}-#{gemspec.version}"
+-
+-    puts "#{" "*30}#{gemspec.name} #{gemspec.version}"
+-    gemspec_path = File.join(default_spec_dir, "#{full_name}.gemspec")
+-    open_for_install(gemspec_path, $data_mode) do
+-      specgen.spec_source
+-    end
+-
+-    unless gemspec.executables.empty? then
+-      bin_dir = File.join(gem_dir, 'gems', full_name, 'bin')
+-      makedirs(bin_dir)
+-
+-      execs = gemspec.executables.map {|exec| File.join(srcdir, 'bin', exec)}
+-      install(execs, bin_dir, :mode => $script_mode)
+-    end
+-  end
++  # gems are unbundled in Gentoo
+ end
+ 
+ install?(:ext, :comm, :gem) do
+-  gem_dir = Gem.default_dir
+-  directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
+-  prepare "bundle gems", gem_dir, directories
+-  install_dir = with_destdir(gem_dir)
+-  installed_gems = {}
+-  options = {
+-    :install_dir => install_dir,
+-    :bin_dir => with_destdir(bindir),
+-    :domain => :local,
+-    :ignore_dependencies => true,
+-    :dir_mode => $dir_mode,
+-    :data_mode => $data_mode,
+-    :prog_mode => $prog_mode,
+-    :wrappers => true,
+-    :format_executable => true,
+-  }
+-  Gem::Specification.each_spec([srcdir+'/gems/*']) do |spec|
+-    ins = RbInstall::UnpackedInstaller.new(spec, options)
+-    puts "#{" "*30}#{spec.name} #{spec.version}"
+-    ins.install
+-    File.chmod($data_mode, File.join(install_dir, "specifications", "#{spec.full_name}.gemspec"))
+-    installed_gems[spec.full_name] = true
+-  end
+-  installed_gems, gems = Dir.glob(srcdir+'/gems/*.gem').partition {|gem| installed_gems.key?(File.basename(gem, '.gem'))}
+-  unless installed_gems.empty?
+-    install installed_gems, gem_dir+"/cache"
+-  end
+-  next if gems.empty?
+-  if defined?(Zlib)
+-    Gem.instance_variable_set(:@ruby, with_destdir(File.join(bindir, ruby_install_name)))
+-    gems.each do |gem|
+-      begin
+-        File.umask(022)
+-        Gem.install(gem, Gem::Requirement.default, options)
+-      ensure
+-        File.umask(0222)
+-      end
+-      gemname = File.basename(gem)
+-      puts "#{" "*30}#{gemname}"
+-    end
+-    # fix directory permissions
+-    # TODO: Gem.install should accept :dir_mode option or something
+-    File.chmod($dir_mode, *Dir.glob(install_dir+"/**/"))
+-    # fix .gemspec permissions
+-    File.chmod($data_mode, *Dir.glob(install_dir+"/specifications/*.gemspec"))
+-  else
+-    puts "skip installing bundle gems because of lacking zlib"
+-  end
++  # gems are unbundled in Gentoo
+ end
+ 
+ parse_args()

diff --git a/patchsets/patches-2.4.1-r2/001_ia64.patch b/patchsets/patches-2.4.1-r2/001_ia64.patch
new file mode 100644
index 0000000..e1e9c89
--- /dev/null
+++ b/patchsets/patches-2.4.1-r2/001_ia64.patch
@@ -0,0 +1,62 @@
+Bug: https://bugs.gentoo.org/show_bug.cgi?id=561780
+
+fix crash on register stack mark/sweep pass
+
+The crash looks like
+
+  Program received signal SIGSEGV, Segmentation fault.
+  mark_locations_array (objspace=0x6000000000045db0, x=0x0, n=864692227966763116) at gc.c:3297
+  3297            v = *x;
+  (gdb) bt
+  #0  mark_locations_array (objspace=0x6000000000045db0, x=0x0, n=864692227966763116) at gc.c:3297
+  #1  0x400000000014a040 in gc_mark_locations (objspace=0x6000000000045db0, start=0x0, end=0x6000080000000368) at gc.c:3310
+  #2  0x400000000014b3a0 in mark_current_machine_context (objspace=0x6000000000045db0, th=0x60000000000455b0) at gc.c:3500
+  #3  0x400000000014dfe0 in gc_mark_roots (objspace=0x6000000000045db0, full_mark=0, categoryp=0x0) at gc.c:4105
+  #4  0x400000000014e6b0 in gc_marks_body (objspace=0x6000000000045db0, full_mark=0) at gc.c:4164
+  #5  0x400000000014f260 in gc_marks (objspace=0x6000000000045db0, full_mark=0) at gc.c:4526
+  #6  0x40000000001525c0 in garbage_collect_body (objspace=0x6000000000045db0, full_mark=0, immediate_sweep=0, reason=256) at gc.c:5024
+  #7  0x400000000013c010 in heap_prepare_freepage (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1219
+  #8  0x400000000013c140 in heap_get_freeobj_from_next_freepage (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1237
+  #9  0x400000000013c360 in heap_get_freeobj (objspace=0x6000000000045db0, heap=0x6000000000045dc0) at gc.c:1259
+  #10 0x400000000013c950 in newobj_of (klass=0, flags=40, v1=0, v2=0, v3=0) at gc.c:1303
+  #11 0x400000000013ccc0 in rb_newobj_of (klass=0, flags=40) at gc.c:1356
+  #12 0x4000000000163740 in hash_alloc (klass=0) at hash.c:289
+  #13 0x4000000000163860 in rb_hash_new () at hash.c:309
+  #14 0x400000000050e420 in Init_BareVM () at vm.c:2822
+  #15 0x40000000000f6b60 in ruby_setup () at eval.c:54
+  #16 0x40000000000f6f50 in ruby_init () at eval.c:75
+  #17 0x400000000001b010 in main (argc=9, argv=0x60000fffffffb1d8) at main.c:35
+
+The problem here is in call
+    gc_mark_locations (objspace=0x6000000000045db0, start=0x0, end=0x6000080000000368) at gc.c:3310
+where 'start' (native_main_thread.register_stack_start)
+is supposed to be stack start but it's not initialized.
+
+The initialization of 'native_main_thread.register_stack_start'
+is supposed to be done in 'ruby_init_stack()'.
+
+But code under 'MAINSTACKADDR_AVAILABLE' exits early.
+The fix is to move 'register_stack_start' earlier.
+
+diff --git a/thread_pthread.c b/thread_pthread.c
+index c8a7a16..9ad448b 100644
+--- a/thread_pthread.c
++++ b/thread_pthread.c
+@@ -722,2 +722,8 @@ ruby_init_stack(volatile VALUE *addr
+     native_main_thread.id = pthread_self();
++#ifdef __ia64
++    if (!native_main_thread.register_stack_start ||
++        (VALUE*)bsp < native_main_thread.register_stack_start) {
++        native_main_thread.register_stack_start = (VALUE*)bsp;
++    }
++#endif
+ #if MAINSTACKADDR_AVAILABLE
+@@ -745,8 +751,2 @@ ruby_init_stack(volatile VALUE *addr
+ #endif
+-#ifdef __ia64
+-    if (!native_main_thread.register_stack_start ||
+-        (VALUE*)bsp < native_main_thread.register_stack_start) {
+-        native_main_thread.register_stack_start = (VALUE*)bsp;
+-    }
+-#endif
+     {

diff --git a/patchsets/patches-2.4.1-r2/002_windows_crossdev.patch b/patchsets/patches-2.4.1-r2/002_windows_crossdev.patch
new file mode 100644
index 0000000..7e290d4
--- /dev/null
+++ b/patchsets/patches-2.4.1-r2/002_windows_crossdev.patch
@@ -0,0 +1,64 @@
+Bug: https://bugs.gentoo.org/show_bug.cgi?id=618878
+
+A few patches to make crossdev for mingw-w64 play nice with ruby's ebuilds.
+Basic gist is that without the following patch to configure.in ruby-2.4.1
+hardcodes 240 into the shared, static, and import library names, which when
+built with the current ruby ebuilds results in names like libx64-msvcrt-ruby24240.dll and so on. The patch is in ruby-trunk[1], but may take a while
+to hit the tarballs that gentoo uses.
+
+Index: configure.in
+===================================================================
+--- a/configure.in	(revision 57824)
++++ b/configure.in	(revision 57825)
+@@ -3825,7 +3825,23 @@
+ 
+ AC_ARG_WITH(soname,
+ 	AS_HELP_STRING([--with-soname=SONAME], [base name of shared library]),
+-	[RUBY_SO_NAME=$withval], [RUBY_SO_NAME='$(RUBY_BASE_NAME)'])
++	[RUBY_SO_NAME=$withval],
++	[
++	    AS_CASE(["$target_os"],
++	    [darwin*], [
++	        RUBY_SO_NAME='$(RUBY_BASE_NAME).$(RUBY_PROGRAM_VERSION)'
++	    ],
++	    [cygwin*], [
++	        RUBY_SO_NAME='$(RUBY_BASE_NAME)$(MAJOR)$(MINOR)0'
++	    ],
++	    [mingw*], [
++		RUBY_SO_NAME="${rb_cv_msvcrt}"'-$(RUBY_BASE_NAME)$(MAJOR)$(MINOR)0'
++		AS_IF([test x"${target_cpu}" != xi386], [
++		    RUBY_SO_NAME="${target_cpu}-${RUBY_SO_NAME}"
++		])
++	    ],
++	    [RUBY_SO_NAME='$(RUBY_BASE_NAME)'])
++	])
+ 
+ LIBRUBY_LDSHARED=$LDSHARED
+ LIBRUBY_DLDFLAGS=$DLDFLAGS
+@@ -3925,7 +3941,6 @@
+ 	SOLIBS='-lm -lc'
+ 	],
+     [darwin*], [
+-	RUBY_SO_NAME="$RUBY_SO_NAME"'.$(RUBY_PROGRAM_VERSION)'
+ 	LIBRUBY_LDSHARED='$(CC) -dynamiclib'
+ 	if test "$load_relative" = yes; then
+ 	    libprefix="@executable_path/../${libdir_basename}"
+@@ -4157,7 +4172,6 @@
+ 	fi
+ 	],
+     [cygwin*|mingw*], [
+-	RUBY_SO_NAME="${RUBY_SO_NAME}"'$(MAJOR)$(MINOR)0'
+ 	LIBRUBY_DLDFLAGS="${DLDFLAGS}"' -Wl,--out-implib=$(LIBRUBY)'
+ 	AS_CASE(["$target_os"],
+ 	[cygwin*], [
+@@ -4167,10 +4181,6 @@
+ 	    fi
+ 	    ],
+ 	[mingw*], [
+-	    RUBY_SO_NAME="${rb_cv_msvcrt}-${RUBY_SO_NAME}"
+-	    if test x"${target_cpu}" != xi386; then
+-		RUBY_SO_NAME="${target_cpu}-${RUBY_SO_NAME}"
+-	    fi
+ 	    if test x"$enable_shared" = xyes; then
+ 		LIBRUBY_SO='$(RUBY_SO_NAME)'.dll
+ 		LIBRUBY_DLDFLAGS="${LIBRUBY_DLDFLAGS}"' $(RUBYDEF)'

diff --git a/patchsets/patches-2.4.1-r2/005_no-undefined-ext.patch b/patchsets/patches-2.4.1-r2/005_no-undefined-ext.patch
new file mode 100644
index 0000000..f279932
--- /dev/null
+++ b/patchsets/patches-2.4.1-r2/005_no-undefined-ext.patch
@@ -0,0 +1,11 @@
+--- ruby-1.9.3-preview1.orig/configure.in
++++ ruby-1.9.3-preview1/configure.in
+@@ -2038,7 +2038,7 @@ if test "$with_dln_a_out" != yes; then
+ 	[linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu], [
+ 			: ${LDSHARED='$(CC) -shared'}
+ 			if test "$rb_cv_binary_elf" = yes; then
+-			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
++			    LDFLAGS="$LDFLAGS -Wl,-export-dynamic -Wl,--no-undefined"
+ 			fi
+ 			rb_cv_dlopen=yes],
+ 	[interix*], [	: ${LDSHARED='$(CC) -shared'}

diff --git a/patchsets/patches-2.4.1-r2/009_no-gems.patch b/patchsets/patches-2.4.1-r2/009_no-gems.patch
new file mode 100644
index 0000000..cdf503c
--- /dev/null
+++ b/patchsets/patches-2.4.1-r2/009_no-gems.patch
@@ -0,0 +1,112 @@
+--- tool/rbinstall.rb.~1~	2016-10-17 09:17:07.000000000 +0200
++++ tool/rbinstall.rb	2016-12-25 08:20:07.873491045 +0100
+@@ -695,107 +695,11 @@
+ # :startdoc:
+ 
+ install?(:ext, :comm, :gem) do
+-  gem_dir = Gem.default_dir
+-  directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
+-  prepare "default gems", gem_dir, directories
+-
+-  spec_dir = File.join(gem_dir, directories.grep(/^spec/)[0])
+-  default_spec_dir = "#{spec_dir}/default"
+-  makedirs(default_spec_dir)
+-
+-  gems = Dir.glob(srcdir+"/{lib,ext}/**/*.gemspec").map {|src|
+-    spec = Gem::Specification.load(src) || raise("invalid spec in #{src}")
+-    file_collector = RbInstall::Specs::FileCollector.new(File.dirname(src))
+-    files = file_collector.collect
+-    next if files.empty?
+-    spec.files = files
+-    spec
+-  }
+-  gems.compact.sort_by(&:name).each do |gemspec|
+-    full_name = "#{gemspec.name}-#{gemspec.version}"
+-
+-    puts "#{" "*30}#{gemspec.name} #{gemspec.version}"
+-    gemspec_path = File.join(default_spec_dir, "#{full_name}.gemspec")
+-    open_for_install(gemspec_path, $data_mode) do
+-      gemspec.to_ruby
+-    end
+-
+-    unless gemspec.executables.empty? then
+-      bin_dir = File.join(gem_dir, 'gems', full_name, gemspec.bindir)
+-      makedirs(bin_dir)
+-
+-      execs = gemspec.executables.map {|exec| File.join(srcdir, 'bin', exec)}
+-      install(execs, bin_dir, :mode => $script_mode)
+-    end
+-  end
++  # gems are unbundled in Gentoo
+ end
+ 
+ install?(:ext, :comm, :gem) do
+-  gem_dir = Gem.default_dir
+-  directories = Gem.ensure_gem_subdirectories(gem_dir, :mode => $dir_mode)
+-  prepare "bundle gems", gem_dir, directories
+-  install_dir = with_destdir(gem_dir)
+-  installed_gems = {}
+-  options = {
+-    :install_dir => install_dir,
+-    :bin_dir => with_destdir(bindir),
+-    :domain => :local,
+-    :ignore_dependencies => true,
+-    :dir_mode => $dir_mode,
+-    :data_mode => $data_mode,
+-    :prog_mode => $prog_mode,
+-    :wrappers => true,
+-    :format_executable => true,
+-  }
+-  gem_ext_dir = "#$extout/gems/#{CONFIG['arch']}"
+-  extensions_dir = Gem::StubSpecification.gemspec_stub("", gem_dir, gem_dir).extensions_dir
+-  Gem::Specification.each_gemspec([srcdir+'/gems/*']) do |path|
+-    dir = File.dirname(path)
+-    spec = Dir.chdir(dir) {
+-      Gem::Specification.load(File.basename(path))
+-    }
+-    next unless spec.platform == Gem::Platform::RUBY
+-    next unless spec.full_name == path[srcdir.size..-1][/\A\/gems\/([^\/]+)/, 1]
+-    spec.extension_dir = "#{extensions_dir}/#{spec.full_name}"
+-    if File.directory?(ext = "#{gem_ext_dir}/#{spec.full_name}")
+-      spec.extensions[0] ||= "-"
+-    end
+-    ins = RbInstall::UnpackedInstaller.new(spec, options)
+-    puts "#{" "*30}#{spec.name} #{spec.version}"
+-    ins.install
+-    File.chmod($data_mode, File.join(install_dir, "specifications", "#{spec.full_name}.gemspec"))
+-    unless spec.extensions.empty?
+-      install_recursive(ext, spec.extension_dir)
+-    end
+-    installed_gems[spec.full_name] = true
+-  end
+-  installed_gems, gems = Dir.glob(srcdir+'/gems/*.gem').partition {|gem| installed_gems.key?(File.basename(gem, '.gem'))}
+-  unless installed_gems.empty?
+-    install installed_gems, gem_dir+"/cache"
+-  end
+-  next if gems.empty?
+-  if defined?(Zlib)
+-    Gem.instance_variable_set(:@ruby, with_destdir(File.join(bindir, ruby_install_name)))
+-    silent = Gem::SilentUI.new
+-    gems.each do |gem|
+-      inst = Gem::Installer.new(gem, options)
+-      inst.spec.extension_dir = with_destdir(inst.spec.extension_dir)
+-      begin
+-        Gem::DefaultUserInteraction.use_ui(silent) {inst.install}
+-      rescue Gem::InstallError => e
+-        next
+-      end
+-      gemname = File.basename(gem)
+-      puts "#{" "*30}#{gemname}"
+-    end
+-    # fix directory permissions
+-    # TODO: Gem.install should accept :dir_mode option or something
+-    File.chmod($dir_mode, *Dir.glob(install_dir+"/**/"))
+-    # fix .gemspec permissions
+-    File.chmod($data_mode, *Dir.glob(install_dir+"/specifications/*.gemspec"))
+-  else
+-    puts "skip installing bundle gems because of lacking zlib"
+-  end
++  # gems are unbundled in Gentoo
+ end
+ 
+ parse_args()