Measures complexity of C source

Current version

gnu-complexity requires the following formulae to be installed:
xz 5.2.3 General-purpose data compression with high compression ratio
autogen 5.18.7_1 Automated text file generator

Formula history

ilovezfs gnu-complexity: swap GNU url and mirror.
ilovezfs gnu-complexity 1.10
Dominyk Tiller urls: update ftpmirror to use https
Ian Kronquist gnu-complexity 1.5 (new formula)