uint32 GFCConfig::major_version =0; uint32 GFCConfig::minor_version =9; uint32 GFCConfig::micro_version =0; uint32 GFCConfig::grid_slab_size = 256; int32 GFCConfig::shm_id = -1; int8 GFCConfig::use_mmap = 1; int8 GFCConfig::debug = 1;