I had a look, and the problem is that configure.rb is failing to create makefiles, breaking the build completely.
This is the relevant failure message: * Checking for Libav... * Configure failed. error was: undefined method `exists?' for class File # force qmake-generated Makefiles to respect dpkg-provided flags and don't strip perl -0pi -e 's[(CXXFLAGS\s*=)][$1 $ENV{CFLAGS} $ENV{CPPFLAGS}]; \ s[(LFLAGS\s*=)][$1 $ENV{LDFLAGS}]; \ s[(CFLAGS\s*=)][$1 $ENV{CFLAGS}]; \ s[(STRIP\s*=)\s*\w+][$1 true];' \ $(find . -name Makefile) -i used with no filenames on the command line, reading from STDIN. Note, when running interactively it now wait for input from STDIN, and exit when pressing ^d. I guess something changed in Ruby breaking this script. It is the first ruby edition of configure I have seen, so not sure how to debug it. -- Happy hacking Petter Reinholdtsen