[ruby-cvs:78629] 40026a408d (master): support cross-compilation.

Koichi Sasada	2019-12-10 17:39:04 +0900 (Tue, 10 Dec 2019)

  New Revision: 40026a408d

  https://github.com/ruby/ruby/commit/40026a408d

  Log:
    support cross-compilation.
    
    On cross-compilation, compiled binary can no be created because
    compiled binary should be created by same interpreter (on cross-
    compilation, host ruby is used to build ruby (BASERUBY)).
    So that cross-compilation system loads required scripts in text.
    It is same as miniruby.

  Modified files:
    builtin.c
    common.mk
    configure.ac
    mini_builtin.c
    tool/mk_builtin_binary.rb