4 RUR_NOISE

Yes, rur may also produce some noises for debug use. Currently the noise is divided into 2 level: WARRING and ERROR.

Something not so painful will be print to stdout, otherwise the error message will be print to stderr. Of course, you can suppress rur to do such things by remove -DDEBUG in the Makefile of the rur source code.

This is all the things rur do, hope it will be useful to you, and welcome your suggestion and improvement.