#2 Makefile problems in Linux

[Mike Small]

Targets like the following don't work in linux, because
the executable doesn't have an extension.

check: testet.exe
testet

Also, the make clean target doesn't clean parseunidata
program and object file. It also seems to try to run
the dependencies before deleting them. This is using
Gnu make 3.80.

I think automake and autoconf have solutions for both
these problems.