((recompiling with the glu library that is not in the toolchain..........))
I am sure that is *not* required, because Dingoo A320 had no GPU. You are most likely messing up the compilation flags.
I took a look at it. This port will require an experienced developer. The compilation flags are taken from config.mk and they seem to not be set for the proper values for A320/GCW0 platform, hence the missing glu library errors. I am clueless what emulation core flags should be enabled. Then, the Makefile is set to use software floating point and other A320 flags that are incompatible with GCW0. I got this emulator to compile, however it segfaults during initialization at an attempt to tweak the cpu clock for A320 hardware (which we naturally don't have on GCW0). So at this point, a qualified person is required for a proper port.
Hope this sheds more light into this matter.