I guess there are bugs with the gles plugin?
I can get it to compile, by going into the plugins/gpu-gles dir and editing Makefile so it has
CFLAGS += -I$(PREFIX)include -I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads/
LDLIBS += -L$(PREFIX)lib -L/opt/vc/lib
but once selecting it in pcsx, no graphics are shown and in the console you get "Warning: GPU_open returned -1"
And sound is weird, it'll work, but then not work, and if its working and you go into the menu, it stops working, etc, blah.