At least for 32-bit x86 I've run into such problems. The Intel Quark platform has such an old CPU core in it that normal Ubuntu binaries wouldn't work on it (ev

At least for 32-bit x86 I've run into such problems. The Intel Quark platform has such an old CPU core in it that normal Ubuntu binaries wouldn't work on it (even at the the platform was relevant), as it lacks conditional move instructions unlike any other non-museum piece x86. Also Glibc drops support for old kernel versions time to time, so even statically linked stuff isn't safe when compiling modern stuff against really old kernels.