I installed 4.8 this weekend and every time I tried to build a port I got a message similar to the following. 1 out 1 hunks failed saved rejects to global_types.h.rej Patch patch_global_types.h failed to apply cleanly. I forget which port this was for, but I got similar messages for hpihs-1.3.1, gmake-3.8.0 and qutoconf2.1.3.000227_5.