Hi. I managed to upgrade orc to 0.4.22, the version in openSUSE_13.2. However, I am not sure how this fits into the grand scheme of things. In order to build a package that depends on orc, you need to install orcc (the compiler) from the native orc package, and install mingw32-liborc-devel . I do not know how well this package will work on older versions of openSUSE that have older versions of native ORC. I can tell you that this upgrade enabled my pulseaudio 6.0 RC1 package to build under openSUSE 13.2; that new version of PulseAudio requires ORC 0.4.17 or later.