s,@EXTOUT@,tmp,g
s,@ruby_version@,0.0.0,g
s,@NULLCMD@,:,g
s,@ARCH_FLAG@,,g
s,@BASERUBY@,ruby,g
s,@BOOTSTRAPRUBY@,$(BASERUBY),g
s,@CC@,false,g
s,@CFLAGS@,,g
s,@CHDIR@,cd,g
s,@CONFIGURE@,configure,g
s,@CP@,cp,g
s,@CPPFLAGS@,,g
s,@CXXFLAGS@,,g
s,@DLDFLAGS@,,g
s,@EXEEXT@,,g
s,@HAVE_BASERUBY@,yes,g
s,@IFCHANGE@,tool/ifchange,g
s,@LDFLAGS@,,g
s,@LIBEXT@,a,g
s,@LIBRUBY@,libruby.a,g
s,@LIBRUBY_A@,libruby.a,g
s,@MINIRUBY@,$(BASERUBY),g
s,@MKDIR_P@,mkdir -p,g
s,@OBJEXT@,o,g
s,@PATH_SEPARATOR@,:,g
s,@PWD@,.,g
s,@RM@,rm -f,g
s,@RMALL@,rm -fr,g
s,@RMDIR@,rmdir,g
s,@RMDIRS@,$(RMDIR) -p,g
s,@RUBY@,$(BASERUBY),g
s,@RUNRUBY@,$(MINIRUBY),g
s,@UNICODE_FILES@,,g
s,@arch@,noarch,g
s,@bindir@,,g
s,@configure_args@,,g
s,@ruby_install_name@,,g
s,@rubyarchdir@,,g
s,@rubylibprefix@,,g
s,@srcdir@,.,g

s/@[A-Za-z][A-Za-z0-9_]*@//g
s/{\$([A-Za-z]*)}//g