* GCC versions from 4.4 to 4.8 (inclusive) must use a special #pragma
* to activate extra opcodes before including the relevant intrinsic
* headers. But these don't work with Clang (which does not need them
* GCC versions from 4.4 to 4.8 (inclusive) must use a special #pragma
* to activate extra opcodes before including the relevant intrinsic
* headers. But these don't work with Clang (which does not need them