Make toU?LongLong set ok to false (but return value) if endPtr != '\0'
Remove printf
Output error count.
Make it possible to copy lists with compatible types.
Move findProjectRoot to GccArguments and make sure to absolutize
arguments before sending them in. Also, make config.status parsing
more robust and do it first to avoid getting generated source files in
the build dir.
Clean up some arguments.
Add hooks
Beef up ByteArray a little.
Nicer output
Even better ByteArray
Don't leak fds