* ruby.c (proc_options): access prefixed "ruby_yydebug".
* applied modifies to pacify some of gcc -Wall warnings.
* parse.y (arg): no more ugly hack for "**", so that "-2**2" to be
parsed as "(-2)**2", whereas "- 2**2" or "-(2)**2" to be parsed
as "-(2**2)".
* parse.y (yylex): '-2' to be literal fixnum. [new]
* time.c (time_succ): new method for Range support.
* time.c (time_arg): nil test against v[6] (usec).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* array.c (rb_ary_or): ditto.
* eval.c (rb_thread_schedule): should save context before raising
deadlock, saved context for current thread might be obsolete.
* time.c (make_time_t): non DST timezone shift supported (hopefully).
* time.c (make_time_t): strict range detection for negative time_t.
* signal.c: SIGINFO added.
* eval.c (rb_ensure): should not SEGV when prot_tag is NULL.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1399 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
which included commits to RCS files with non-trunk default branches.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
