Release 2.6.31 or higher

AMD, ARM, Intel, PowerPC, Tile, MIPS

These libraries are required : popt, bfd, liberty (debian users: libiberty is provided in binutils-dev package), dl, plus the standard C++ libraries.

Either the kernel-headers package must be installed or use the --with-kernel configure option.

For secure processing of sample data from JIT virtual machines (e.g., Java), the special user account "oprofile" must exist on the system. The 'configure' and 'make install' operations will print warning messages if this account is not found. If you intend to profile JITed code, you must create a group account named 'oprofile' and then create the 'oprofile' user account, setting the default group to 'oprofile'. A runtime error message is printed to the oprofile log when processing JIT samples if this special user account cannot be found.

Probably not too strenuous a requirement, but older A.OUT binaries/libraries are not supported.

OK, so it's not really a requirement, but I wish it was...