52cb060f
 by Gerald Pfeifer   at 2025-04-07T09:49:16+02:00 
ntdll: Fix build on platforms without getauxval.
Commit b1b5105ceb moved the following block
    #ifdef AT_HWCAP2
             if (getauxval( AT_HWCAP2 ) & 2) syscall_flags |= SYSCALL_HAVE_WRFSGSBASE;
    #endif
out of an #ifdef __linux__ block and it now causes failures on FreeBSD
and others which do not have getauxval.