Makefile: Rework examples to be portable.
Makefile: Rework examples to be portable.

ranxian/peloton-frontend,ranxian/peloton-frontend,ranxian/peloton-frontend,ranxian/peloton-frontend,ranxian/peloton-frontend,lfittl/libpg_query,lfittl/libpg_query,lfittl/libpg_query