This is an expanded version of this great ccub hint. Included are:
ccub_t – universal 32bit with the Tiger SDKccub_l – universal 32bit with the Leopard SDKccub_3264 – all-out quad-arch with the Leopard SDKccub_64 – universal 64bit-only with the Leopard SDKc++ub_t – universal 32bit with the Tiger SDKc++ub_l – universal 32bit with the Leopard SDKc++ub_3264 – all-out quad-arch with the Leopard SDKc++ub_64 – universal 64bit-only with the Leopard SDKMy build instructions mostly use ccub_t and ccub_3264 (and c++ couterparts). ccub_l is what to use for source that has issues with 64bits on Leopard, such as having Carbon dependencies.