in lib/omnibus/builder.rb [166:192]
def configure(*args)
options = args.last.is_a?(Hash) ? args.pop : {}
configure = options.delete(:bin) || "./configure"
configure_cmd = [configure]
if windows?
platform = windows_arch_i386? ? "i686-w64-mingw32" : "x86_64-w64-mingw32"
configure_cmd << "--build=#{platform}"
end
prefix = options.delete(:prefix) || "#{install_dir}/embedded"
configure_cmd << "--prefix=#{prefix}" if prefix && prefix != ""
configure_cmd.concat args
configure_cmd = configure_cmd.join(" ").strip
options[:in_msys_bash] = true
command(configure_cmd, options)
end