[ruby-cvs:67426] ko1:r60245 (trunk): add RUNRUBY_USE_GDB envvar for runruby.rb.

[ko1 at ruby-lang.org]

ko1	2017-10-21 18:24:59 +0900 (Sat, 21 Oct 2017)

  New Revision: 60245

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60245

  Log:
    add RUNRUBY_USE_GDB envvar for runruby.rb.
    
    * tool/runruby.rb: add RUNRUBY_USE_GDB environment variable.
      If RUNRUBY_USE_GDB=true then use 'gdb --args'.
      If there is 'run.gdb' file (made by 'make run.gdb') on current directory,
      run gdb with this file ('gdb -x run.gdb --args').
    
      This envval is useful when you want to run test-all (and so on) with gdb.

  Modified files:
    trunk/tool/runruby.rb