module RbSys::Mkmf
def env_or_makefile_config(key, builder)
def env_or_makefile_config(key, builder) builder.env[key] || ENV[key] || RbConfig::MAKEFILE_CONFIG[key] end
def env_or_makefile_config(key, builder) builder.env[key] || ENV[key] || RbConfig::MAKEFILE_CONFIG[key] end