This package will have some errors when running with gcc3.3.3. You can fix it by
- changing void main(..) to int main(...)
- Removing <cr> in the following lines in build-icm.c file
 "usage:
 \t%s [-options ...]
 \t{reads traing seq from stdin}
 \t{print model to stdout}\n\n", *argv);
 fprintf (stderr,
 "where options include:
 \t-b\tprint the model as a binary file (default)
 \t-h\tprint this help message