require 'mkmf' CONFIG["CC"] = "g++" $CFLAGS = "#{ENV['CFLAGS']} -Wall -O3 " if CONFIG["MAJOR"].to_i >= 1 && CONFIG["MINOR"].to_i >= 8 $CFLAGS << " -DHAVE_DEFINE_ALLOC_FUNCTION" end $INCFLAGS << " -I/usr/include/cassowary " $LIBS << " -lcassowary" dir_config("cassowary") create_makefile("cassowary")