Linux gcc fixes

[erincatto]

Fixes #774 and more.

Added Intel N100 benchmarks.

[terroo]

Take advantage and include cstdio in the file: samples/sample_determinism.cpp as there is an error when compiling due to the lack of this header.

[erincatto]

Take advantage and include cstdio in the file: samples/sample_determinism.cpp as there is an error when compiling due to the lack of this header.

This pull requests already adds <stdio.h> to that file. I was able to compile and run the samples on ubuntu.

[define-private-public]

Thanks for doing this. I'm looking to do some benchmarking of C & C++ language features and I thought using Box2D would be good since it's a more real-world application/library.

Can the benchmarks be run in a headless mode?

[erincatto]

Thanks for doing this. I'm looking to do some benchmarking of C & C++ language features and I thought using Box2D would be good since it's a more real-world application/library.

Can the benchmarks be run in a headless mode?

Yes, the benchmark application runs on the console and emits csv files.