The Gecko USB serial adapter is no longer easy to obtain and using
the Ethernet adapter instead is supported by devkitPro/libogc.
However, when enabled, this fails to link when dynamic plugins are
enabled due to missing symbols for gdbstub_getoffsets() found in
devkitPro/libogc/libdb/debug_supp.c. To be exact, this is the
u8 __text_fstart[],__data_fstart[],__bss_fstart[] which should be
implicitly provided by the linker(?)
A monolithic static build with this enabled does succeed, but has not
yet been tested.
f1d2ba701a