SD_SYSINFO_OS                     : integer : required
SD_SYSINFO_OS_VERSION             : string  : required
SD_SYSINFO_ARCH                   : integer : required
SD_SYSINFO_CC_TYPE                : integer : required
SD_SYSINFO_CFLAGS                 : string  : required
SD_SYSINFO_LDFLAGS                : string  : required
SD_SYSINFO_CC_VERSION             : string  : required
SD_SYSINFO_CC_VERSION_MAJOR       : integer : required
SD_SYSINFO_CC_VERSION_MINOR       : integer : required
SD_SYSINFO_CC_VERSION_PATCH       : integer : required
SD_SYSINFO_ADA_CFLAGS             : string  : required
SD_SYSINFO_ADA_BFLAGS             : string  : required
SD_SYSINFO_ADA_LDFLAGS            : string  : required
SD_SYSINFO_ADA_TYPE               : integer : required
SD_SYSINFO_ADA_VERSION            : string  : required
SD_SYSINFO_ADA_VERSION_MAJOR      : integer : required
SD_SYSINFO_ADA_VERSION_MINOR      : integer : required
SD_SYSINFO_ADA_VERSION_PATCH      : integer : required
SD_SYSINFO_CPU_NUM                : integer : required
SD_SYSINFO_CPU_L1_INST_CACHE_SIZE : integer : required
SD_SYSINFO_CPU_L1_DATA_CACHE_SIZE : integer : required
SD_SYSINFO_CPU_L2_CACHE_SIZE      : integer : required
SD_SYSINFO_CPU_L3_CACHE_SIZE      : integer : required
SD_SYSINFO_CPU_CACHE_LINE_SIZE    : integer : required
SD_SYSINFO_CPU_FREQ               : integer : required
SD_SYSINFO_CPU_EXT                : integer : required
SD_SYSINFO_HAVE_CPU_EXT_MMX       : integer : optional
SD_SYSINFO_HAVE_CPU_EXT_MMX2      : integer : optional
SD_SYSINFO_HAVE_CPU_EXT_SSE       : integer : optional
SD_SYSINFO_HAVE_CPU_EXT_SSE2      : integer : optional
SD_SYSINFO_HAVE_CPU_EXT_SSE3      : integer : optional
SD_SYSINFO_HAVE_CPU_EXT_SSE4_1    : integer : optional
SD_SYSINFO_HAVE_CPU_EXT_SSE4_2    : integer : optional
