configure.in: use default compilers for non-darwin

* configure.in: use clang prior to gcc only when self-compiling on
  darwin.  search default compilers on other platforms.  [Bug #6816]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36611 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (invokesuper): don't skip the same class.  instead, use
  rb_method_entry_get_with_omod() to avoid infinite loop when
  super is used with refinements. [ruby-core:30450] [Bug #3351]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36612 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* insns.def (invokesuper): reverted r36612 so that super in an
  aliased method will not call the same method.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36613 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2012-08-04

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36614 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_super.rb: rename

* test/ruby/test_super.rb (TestSuper#test_double_include2): rename to
  get rid of redefinition.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36615 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
vm_insnhelper.c: no recv

* vm_insnhelper.c (vm_search_normal_superclass): no longer needs
  receiver, klass is always unique in the ancestors now.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36616 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/ruby/test_alias.rb (test_super_in_aliased_module_method):
  add a test case for [ruby-dev:46028], which fails in 1.8.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36617 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (gc_mark_children): use gc_mark_ptr instead of marking
  a object directly.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c: use inline functions instead of macros, and close up
  related codes for the profiler.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36619 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
	* ext/date/date_{core,strftime}.c: [ruby-core:46990].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36620 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2012-08-05

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36621 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
added a comment


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36622 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
uncommented some tests


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36623 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: use gcc-4.2 prior to clang, gcc, and cc if exist for
  the use of Snow Leopard's old clang. see also r36594, r36610, r36611.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_etc.rb: remove implicit assumption

* test/etc/test_etc.rb (TestEtc#test_getpwuid): remove implicit
  assumption, that getpwuid() would return the first entry in the
  order of getpw(), for shared UID.  apparently it is not true on
  MacOS X 10.8.  [ruby-core:46975][Bug #6831]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36625 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c: just move functions and so on. I don't touch any internal
  implementation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36626 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c : if ENABLE_VM_OBJSPACE is 1, rest_sweep is not defined.
  remove unused declarations.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36627 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
add references

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36628 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ruby.h: fix cast

* include/ruby/ruby.h (NUM2SSIZET): fix type to cast.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36629 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2012-08-06

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36630 b2dd03c8-39d4-4d8f-98ff-823fe69b080e