32bit compile doesnt work for me on Ubuntu 16.04.03 x86_64.
# ./mkxminer
./mkxminer: error while loading shared libraries: libOpenCL.so.1: wrong ELF class: ELFCLASS64
$ LD_LIBRARY_PATH=/opt/AMDAPPSDK-3.0/lib/x86 ./mkxminer
...but then...
[15:20:06 - 0 days 00:00:00] clGetPlatformsIDs error -1001, verify that drivers are installed properly
[15:20:06 - 0 days 00:00:00] Error: GPU devices not found
[15:20:06 - 0 days 00:00:00] Could not find any GPUs, exitting...
I have sgminer working with amdgpu-pro on the 4.4 kernel. I am pretty sure this just needs to be recompiled for 64-bit.