* ext/bigdecimal/bigdecimal.c: Fix style.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39872 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
compiler version

* common.mk (showflags): show the compiler version.

* configure.in (CC_VERSION): compiler with version option.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39873 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
load.c: loaded_features_index st_table

* load.c (rb_feature_p), vm_core.h (rb_vm_struct): turn
  loaded_features_index into st_table.  patches by tmm1 (Aman Gupta)
  in [ruby-core:53251] and [ruby-core:53274] [Bug #8048]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39874 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
forwardable.rb: reduce allocations in def_delegators

* lib/forwardable.rb (Forwardable::FILE_REGEXP): create regexp object
  outside sources for eval, to reduce allocations in def_delegators
  wrappers.  //o option does not make each regexps shared.  patch by
  tmm1 (Aman Gupta) in [ruby-core:53620] [Bug #8143].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39875 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
cleanup by @vipulnsward [GH fixes #262]

lib/net/http/generic_request.rb: Removes unnecessary assignment
lib/net/ftp.rb: Fixes dead code


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39876 b2dd03c8-39d4-4d8f-98ff-823fe69b080e