$  make clean
[CLEAN PNML]
[CLEAN NML]
[CLEAN LNG]
[CLEAN GRF]
[CLEAN DOC]
[CLEAN BUNDLE]
[CLEAN BUNDLE SRC]


$  time make 
make: *** No rule to make target 'docs/changelog.txt', needed by 'doc'.  Stop.
make: *** Waiting for unfinished jobs....
[GENERATE PNML]
python scripts/preprocess.py 'FIRS Industry Replacement Set 2015-01-24 (5502:abc336a88976)' '4053' '' ''
[PYTHON] python preprocessing
[PYTHON] render pnml
Linking
15.21s
[PYTHON] render docs
[PARSE BASE LANG & EXTRA STRINGS] utils.py
1.34s
make  60.26s user 1.58s system 297% cpu 20.784 total