https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63966
--- Comment #9 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Jakub Jelinek from comment #7) > That assumes there is <cpuid.h> provided by the system compiler. > The code is guarded with > #if (GCC_VERSION >= 4005) && (defined(__i386__) || defined(__x86_64__)) && > !(defined(__sun__) && defined(__svr4__)) > but doesn't clang and icc pretend to be some versions of GCC? > I think better would be to include #include "../gcc/config/i386/cpuid.h" > only if GCC_VERSION >= 5000 (or perhaps that or __PIC__ not defined or > __x86_64__ defined), and otherwise not use __get_cpuid at all, just > statically decide based on minimum value. Whops, I didn't see this message. Yes, we can follow the example in driver-i386.h and just disable specialization for gcc < 5.0
