added #includes for compilation on g++ 4.4.3

[daler]

I had trouble compiling filo in Ubuntu 10.04, which has gcc/g++ version 4.4.3 in the repos. Upon compiling, I got errors like

shuffle.cpp:32: error: ‘strlen’ was not declared in this scope

So I made minor tweaks to stats.cpp and shuffle.cpp as described in http://gcc.gnu.org/gcc-4.3/porting_to.html and now it works like a charm. Hopefully these #includes are backwards-compatible?

-ryan

[arq5x]

Thanks Ryan, I will incorporate these changes. I think it's time for me to update my compiler...

[brentp]

+1 I just did this same patch for limits + string and came here to report.

gcc-4.5 also gives a warning:

stats.cpp:57:57: warning: suggest parentheses around ‘&&’ within ‘||’
  * linking stats

for your argument parsing.