file MAKEFILE => EXT_CONF do |t|
Dir::chdir(File::dirname(EXT_CONF)) do
- unless sh "ruby #{File::basename(EXT_CONF)}"
+ unless sh "ruby #{File::basename(EXT_CONF)} --with-_guestfs-include=../../../src --with-_guestfs-lib=../../../src/.libs"
$stderr.puts "Failed to run extconf"
break
end