Project has been moved to Github: http://dgoodmaniii.github.io/dozenal/dozenal/
To preface, I am not tech savvy, in that I know nothing about software design and the like. I'm running Ubuntu 14.04 with GCC version 4.8.2, and I downloaded version 11E90919 of the dozenal suite. Running the install.sh file in terminal as is didn't work for most included programs, resulting in "undefined reference to `fmod'" for each. The quick and dirty fix is to edit each problematic program's Makefile so that each line that begins with "gcc" ends with "-lm". For example, in doz, the Makefile includes "gcc -g -lm -o doz main.o conv.o doz.o dec.o", so change it to "gcc -g -o doz main.o conv.o doz.o dec.o -lm", with the "-lm" moved to the end, and there is also "gcc -g -c dec.c", which should be changed to "gcc -g -c dec.c -lm". I'm sure this isn't necessary to do in every case, but I didn't want to spend the time finding which absolutely needed the change. After editing the Makefiles, the install.sh should work as intended when run in terminal. The programs themselves all work satisfactorily. I am particularly pleased with dozpret's LaTeX tag, and I find tgmconv to be infinitely preferable to most online converters.
Thanks for good program!