require 'mkmf' dir_config("shout") have_library("ogg", "oggpack_writeinit") have_library("vorbis", "vorbis_dsp_clear") have_library("speex", "speex_decode") if find_library("shout", "shout_init","/usr","/usr/local") and have_header("shout/shout.h") create_makefile("shout") else print "*** ERROR: need to have libshout and shout/shout.h to compile this module\n" end