MakeMakefile#dummy_makefile

# File tmp/rubies/ruby-3.4.1/lib/mkmf.rb, line 2237
  def dummy_makefile(srcdir)
    configuration(srcdir) << <<RULES << CLEANINGS
CLEANFILES = #{$cleanfiles.join(' ')}
DISTCLEANFILES = #{$distcleanfiles.join(' ')}

all install static install-so install-rb: Makefile
        @$(NULLCMD)
.PHONY: all install static install-so install-rb
.PHONY: clean clean-so clean-static clean-rb

RULES
  end