I tried to edit the tests/Makefile and placed before every files_utilities* an equivalent line for file.cpp, but .... many undefined references which are a little hard to track at this hour, and which are probably unrelated to my little file : )
So, i hope someone will test the test and tell me if it was well written. ( my first test written in that manner )
test_file.cpp.gz
Description: GNU Zip compressed data
