Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Good concepts but poor portability testing

This book has great promise. Unfortunately, it was not tested on a variety of platforms for ease of building. I installed it on my NT box, and no executables were provided, just source. I installed it on my Linux box, hoping that building there would be much more straightforward. The makefile and build process is very poor. The ZIP file in the UNIX directory on the CD-ROM all has dos-format files in it (^M on every line) which messes up the EGCS compiler. I'm having to edit a great number of files to get anything to compile. I'm persevering because it has some cool ideas in it. But if they could have taken the time to write better build scripts and makefiles for a variety of platforms, I could rate the book better. This book could have been excellent but fails in its CD-ROM delivery.